diff --git a/group/groupui/addgroupstogrouping-form.js b/group/groupui/addgroupstogrouping-form.js
index c9bf9696fb1..9a9e90accf0 100644
--- a/group/groupui/addgroupstogrouping-form.js
+++ b/group/groupui/addgroupstogrouping-form.js
@@ -1,11 +1,11 @@
 
 
 function onAddGroupsToGrouping() {
-	hideAllForms();
-	showElement("groupeditform");
-	addGroupsToGrouping();
-	setText('selectedgroupingforaddinggroups', "");
-	return false;
+    hideAllForms();
+    showElement("groupeditform");
+    addGroupsToGrouping();
+    setText('selectedgroupingforaddinggroups', "");
+    return false;
 }
 
 
@@ -13,13 +13,13 @@ function onAddGroupsToGrouping() {
  * Adds the selected groups to the selected groupings
  */
 function addGroupsToGrouping() {
- 	//alert("Called addGroupsToGrouping");
- 	selectedgroups = getMultipleSelect("groupsnotingrouping");
- 	if (selectedgroups != '') {	
- 		var url = "addgroupstogrouping-xml.php";
-    	var requeststring = "groupingid="+selectedgroupingid
-    					+"&groups="+selectedgroups;
-    	sendPostRequest(request, url, requeststring, addGroupsToGroupingResponse);
+    //alert("Called addGroupsToGrouping");
+    selectedgroups = getMultipleSelect("groupsnotingrouping");
+    if (selectedgroups != '') {
+        var url = "addgroupstogrouping-xml.php";
+        var requeststring = "groupingid="+selectedgroupingid
+            +"&groups="+selectedgroups;
+        sendPostRequest(request, url, requeststring, addGroupsToGroupingResponse);
     }
 }
 
@@ -29,16 +29,16 @@ function addGroupsToGrouping() {
  */
 function addGroupsToGroupingResponse() {
     if (checkAjaxResponse(request)) {
-    	//alert("addGroupsToGrouping called");
-      	//alert(request.responseText);
-      	// Need XML sent back with groupingid
-      	// Really want to set this to be the grouping before
-      	error = getFromXML(request.responseXML, 'error');
-      	if (error != null) {
-      		alert(error);	
-      	}      	
-      	updateGroupings();
-      	hideElement("addgroupstogroupingform");
+        //alert("addGroupsToGrouping called");
+        //alert(request.responseText);
+        // Need XML sent back with groupingid
+        // Really want to set this to be the grouping before
+        error = getFromXML(request.responseXML, 'error');
+        if (error != null) {
+            alert(error);
+        }
+        updateGroupings();
+        hideElement("addgroupstogroupingform");
     }
 }
 
@@ -47,10 +47,10 @@ function addGroupsToGroupingResponse() {
  * Updates the groups not in the selected grouping for the form for adding groups to a grouping
  */
 function updateGroupsNotInGrouping() {
-	//alert("updateNonMembers called");
-	var url="getgroupsnotingrouping-xml.php";
-    var requeststring = "groupingid="+selectedgroupingid;	
-    sendPostRequest(request, url, requeststring, updateGroupsNotInGroupingResponse);	
+    //alert("updateNonMembers called");
+    var url="getgroupsnotingrouping-xml.php";
+    var requeststring = "groupingid="+selectedgroupingid;
+    sendPostRequest(request, url, requeststring, updateGroupsNotInGroupingResponse);
 }
 
 
@@ -59,14 +59,14 @@ function updateGroupsNotInGrouping() {
  */
 function updateGroupsNotInGroupingResponse() {
     if (checkAjaxResponse(request)) {
-    	//alert("updateGroupsNotInGroupingResponse");
-      	var xmlDoc = request.responseXML;
-      	//alert(request.responseText);
-      	error = getFromXML(request.responseXML, 'error');
-      	if (error != null) {
-      		alert(error);	
-      	}      	
-      	addOptionsFromXML("groupsnotingrouping", xmlDoc);
+        //alert("updateGroupsNotInGroupingResponse");
+        var xmlDoc = request.responseXML;
+        //alert(request.responseText);
+        error = getFromXML(request.responseXML, 'error');
+        if (error != null) {
+            alert(error);
+        }
+        addOptionsFromXML("groupsnotingrouping", xmlDoc);
     }
 }
 
diff --git a/group/groupui/addmembers-form.js b/group/groupui/addmembers-form.js
index fc3019d9c7e..9aa54bb728c 100644
--- a/group/groupui/addmembers-form.js
+++ b/group/groupui/addmembers-form.js
@@ -1,15 +1,13 @@
-
-
 function onAddMembers() {
-	hideAllForms();
-	showElement("groupeditform");
-	addMembers();
-	return false;
+    hideAllForms();
+    showElement("groupeditform");
+    addMembers();
+    return false;
 }
 
 function onShowAll() {
-	updateNonMembers();
-	return false;
+    updateNonMembers();
+    return false;
 }
 
 
@@ -18,12 +16,12 @@ function onShowAll() {
  * Adds the selected users to the selected group
  */
 function addMembers() {
- 	//alert("Called addMembers");
- 	users = getMultipleSelect("nonmembers");
- 	if (users != '') {
- 		var url = "addmembers-xml.php";
-    	var requeststring = "groupid="+selectedgroupid+"&users="+users;
-    	sendPostRequest(request, url, requeststring, addMembersResponse);
+    //alert("Called addMembers");
+    users = getMultipleSelect("nonmembers");
+    if (users != '') {
+        var url = "addmembers-xml.php";
+        var requeststring = "groupid="+selectedgroupid+"&users="+users;
+        sendPostRequest(request, url, requeststring, addMembersResponse);
     }
 }
 
@@ -32,16 +30,16 @@ function addMembers() {
  */
 function addMembersResponse() {
     if (checkAjaxResponse(request)) {
-    	//alert("addMembersResponse called");
-      	//alert(request.responseText);
-      	// Need XML sent back with groupingid
-      	// Really want to set this to be the grouping before
-      	error = getFromXML(request.responseXML, 'error');
-      	if (error != null) {
-      		alert(error);	
-      	}      	
-      	updateSelectedGrouping();
-      	hideElement("addmembersform");
+        //alert("addMembersResponse called");
+        //alert(request.responseText);
+        // Need XML sent back with groupingid
+        // Really want to set this to be the grouping before
+        error = getFromXML(request.responseXML, 'error');
+        if (error != null) {
+            alert(error);
+        }
+        updateSelectedGrouping();
+        hideElement("addmembersform");
     }
 }
 
@@ -50,16 +48,16 @@ function addMembersResponse() {
  * Updates the list of non members of a group in the form for adding members to a group
  */
 function updateNonMembers() {
-	//alert("updateNonMembers called");
-	var url="getnonmembers-xml.php";
-	// showall indicates if we should show users already in groups in the grouping
-	// we have to turn it into a variable that we can put in a post
-	var showall = getCheckBoxValue('showall');;
-	var requeststring = "groupid="+selectedgroupid
-						+"&groupingid="+selectedgroupingid
-						+"&showall="+showall;
-				
-    sendPostRequest(request, url, requeststring, updateNonMembersResponse);	
+    //alert("updateNonMembers called");
+    var url="getnonmembers-xml.php";
+    // showall indicates if we should show users already in groups in the grouping
+    // we have to turn it into a variable that we can put in a post
+    var showall = getCheckBoxValue('showall');;
+    var requeststring = "groupid="+selectedgroupid
+        +"&groupingid="+selectedgroupingid
+        +"&showall="+showall;
+
+    sendPostRequest(request, url, requeststring, updateNonMembersResponse);
 }
 
 /**
@@ -67,14 +65,14 @@ function updateNonMembers() {
  */
 function updateNonMembersResponse() {
     if (checkAjaxResponse(request)) {
-    	//alert("updateNonMembersResponse");
-      	var xmlDoc = request.responseXML;
-      	// alert(request.responseText);
-      	error = getFromXML(request.responseXML, 'error');
-      	if (error != null) {
-      		alert(error);	
-      	}
-      	addOptionsFromXML("nonmembers", xmlDoc);
+        //alert("updateNonMembersResponse");
+        var xmlDoc = request.responseXML;
+        // alert(request.responseText);
+        error = getFromXML(request.responseXML, 'error');
+        if (error != null) {
+            alert(error);
+        }
+        addOptionsFromXML("nonmembers", xmlDoc);
     }
 }
 
diff --git a/group/groupui/ajax.js b/group/groupui/ajax.js
index ff7e9042fb7..eab802eb7e3 100644
--- a/group/groupui/ajax.js
+++ b/group/groupui/ajax.js
@@ -8,8 +8,8 @@
 
 
 <?php
-	echo "var courseid = $courseid;"; 
-	echo "var sesskey = '$sesskey';";
+    echo "var courseid = $courseid;"; 
+    echo "var sesskey = '$sesskey';";
 ?>
 
 /*
@@ -17,27 +17,27 @@
  * @return The XMLHttpRequest object created. 
  */
 function createRequest() {
- 	var newrequest = null;
-	try {
-	    newrequest = new XMLHttpRequest();
-	} catch (trymicrosoft) {
-		// Deal with Microsoft browsers 
-	    try {
-	      	newrequest = new ActiveXObject("Msxml2.XMLHTTP");
-	    } catch (othermicrosoft) {
-			try {
-			    newrequest = new ActiveXObject("Microsoft.XMLHTTP");
-		    } catch (failed) {
-		        newrequest = null;
-		    }
-	    }
-	}
+    var newrequest = null;
+    try {
+        newrequest = new XMLHttpRequest();
+    } catch (trymicrosoft) {
+        // Deal with Microsoft browsers 
+        try {
+            newrequest = new ActiveXObject("Msxml2.XMLHTTP");
+        } catch (othermicrosoft) {
+            try {
+                newrequest = new ActiveXObject("Microsoft.XMLHTTP");
+            } catch (failed) {
+                newrequest = null;
+            }
+        }
+    }
 
-	if (newrequest == null) {
-	 	alert("Error creating request object!");
-	} else {
-		return newrequest;
-	}
+    if (newrequest == null) {
+        alert("Error creating request object!");
+    } else {
+        return newrequest;
+    }
 }
 
 /*
@@ -49,29 +49,29 @@ function createRequest() {
  * @callbackfunction  - The function to call when the response to the request is received 
 */
 function sendPostRequest(postrequest, url, requeststring, callbackfunction) {
-	// Add on the date and time to get round caching problem
-  	url = url + "?dummy=" + new Date().getTime();
-  	// Add the course id and sesskey so we can check these on the server 
-  	requeststring = 'courseid='+courseid+'&'+'sesskey='+sesskey+'&'+requeststring;
-  	postrequest.abort();
-  	postrequest.open('post',  url, true);
-	postrequest.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-  	postrequest.onreadystatechange = callbackfunction;
-  	postrequest.send(requeststring);
+    // Add on the date and time to get round caching problem
+    url = url + "?dummy=" + new Date().getTime();
+    // Add the course id and sesskey so we can check these on the server 
+    requeststring = 'courseid='+courseid+'&'+'sesskey='+sesskey+'&'+requeststring;
+    postrequest.abort();
+    postrequest.open('post',  url, true);
+    postrequest.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
+    postrequest.onreadystatechange = callbackfunction;
+    postrequest.send(requeststring);
 }
 
 function checkAjaxResponse(request) {
-	process = false;
-	
-	if (request.readyState == 4 && request.status == 200) {
-		process = true;
-	}	
+    process = false;
+
+    if (request.readyState == 4 && request.status == 200) {
+        process = true;
+    }
     if (request.readyState == 4 && request.status != 200) {
-    	alert('An error has occurred - the page returned a '+ request.status + ' error');
+        alert('An error has occurred - the page returned a '+ request.status + ' error');
     }
     return process;    
 }
 
 var responseFailure = function(o){ 
-	alert("Failure callback");
+    alert("Failure callback");
 }
diff --git a/group/groupui/createautomaticgrouping-form.js b/group/groupui/createautomaticgrouping-form.js
index 4f779206d2b..9a0020d4528 100644
--- a/group/groupui/createautomaticgrouping-form.js
+++ b/group/groupui/createautomaticgrouping-form.js
@@ -1,12 +1,12 @@
 function onCreateAutomaticGrouping() {
-	valid =  validateAutomaticGroupingForm();
-	if (valid) {
-		hideAllForms();
-		showElement("groupeditform");
-		createAutomaticGrouping();
-	}
-	
-	return false;
+    valid =  validateAutomaticGroupingForm();
+    if (valid) {
+        hideAllForms();
+        showElement("groupeditform");
+        createAutomaticGrouping();
+    }
+
+    return false;
 }
 
 
@@ -14,21 +14,21 @@ function onCreateAutomaticGrouping() {
  * Adds an automatically generated grouping with the details as specified in the form
  */
 function createAutomaticGrouping() {
- 	//alert("Called createAutomaticGrouping");	
- 	var url = "createautomaticgrouping-xml.php";
+    //alert("Called createAutomaticGrouping");
+    var url = "createautomaticgrouping-xml.php";
     var requeststring = "noofstudents="+getTextInputValue('noofstudents')
-    					+"&noofgroups="+getTextInputValue('noofgroups')
-    					+"&distribevenly="+getCheckBoxValue('distribevenly')
-    					+"&alphabetical="+getCheckBoxValue('alphabetical')
-    					+"&generationtype="+getRadioValue(document.automaticgroupingform.generationtype)
-    					+"&name="+getTextInputValue('automaticgroupingname')
-    					+"&description="+getTextInputValue('edit-automaticgroupingdescription')
-    					+"&prefix="+getTextInputValue('groupprefix')
-    					+"&defaultgroupdescription="+getTextInputValue('edit-defaultgroupdescription');
-   	
-   	// alert(requeststring);
+        +"&noofgroups="+getTextInputValue('noofgroups')
+        +"&distribevenly="+getCheckBoxValue('distribevenly')
+        +"&alphabetical="+getCheckBoxValue('alphabetical')
+        +"&generationtype="+getRadioValue(document.automaticgroupingform.generationtype)
+        +"&name="+getTextInputValue('automaticgroupingname')
+        +"&description="+getTextInputValue('edit-automaticgroupingdescription')
+        +"&prefix="+getTextInputValue('groupprefix')
+        +"&defaultgroupdescription="+getTextInputValue('edit-defaultgroupdescription');
+
+    // alert(requeststring);
     sendPostRequest(request, url, requeststring, createAutomaticGroupingResponse);
- }
+}
  
 
 
@@ -38,44 +38,42 @@ function createAutomaticGrouping() {
   */
  function createAutomaticGroupingResponse() {
     if (checkAjaxResponse(request)) {
-    	//alert("createAutomaticGroupingResponse");
-      	//alert(request.responseText);
-      	error = getFromXML(request.responseXML, 'error');
-      	if (error != null) {
-      		alert(error);	
-      	}      	
-      	selectedgroupingid = getFromXML(request.responseXML, 'groupingid');
-      	selectedgroupid = null;
-      	updateGroupings();
-      	hideElement("createautomaticgroupingform");
+        //alert("createAutomaticGroupingResponse");
+        //alert(request.responseText);
+        error = getFromXML(request.responseXML, 'error');
+        if (error != null) {
+            alert(error);
+        } 
+        selectedgroupingid = getFromXML(request.responseXML, 'groupingid');
+        selectedgroupid = null;
+        updateGroupings();
+        hideElement("createautomaticgroupingform");
     }
-}
+ }
 
 function validateAutomaticGroupingForm() {
-	valid = true;
- 	generationtype = getRadioValue(document.automaticgroupingform.generationtype);
- 	noofstudents = getTextInputValue('noofstudents');
- 	noofgroups = getTextInputValue('noofgroups');
- 	groupingname = getTextInputValue('automaticgroupingname');
- 	
- 	if (generationtype == 'nostudents') {
- 		if (!isPositiveInt(noofstudents)) {
- 			alert('The number of students is not valid.');
- 			valid = false;
- 		} 
- 	} else {		
- 		if (!isPositiveInt(noofgroups)) {
- 			alert('The number of groups is not valid.');
- 			valid = false;
- 		} 
- 	}
- 	
- 	if (groupingname == '') {
- 			alert('You must enter a name for the new grouping');
- 			valid = false;
- 	} 
- 	
-	return valid;
+    valid = true;
+    generationtype = getRadioValue(document.automaticgroupingform.generationtype);
+    noofstudents = getTextInputValue('noofstudents');
+    noofgroups = getTextInputValue('noofgroups');
+    groupingname = getTextInputValue('automaticgroupingname');
+
+    if (generationtype == 'nostudents') {
+        if (!isPositiveInt(noofstudents)) {
+            alert('The number of students is not valid.');
+            valid = false;
+        } 
+    } else {
+        if (!isPositiveInt(noofgroups)) {
+            alert('The number of groups is not valid.');
+            valid = false;
+        } 
+    }
+
+    if (groupingname == '') {
+        alert('You must enter a name for the new grouping');
+        valid = false;
+    } 
+
+    return valid;
 }
-
-
diff --git a/group/groupui/creategroup-form.js b/group/groupui/creategroup-form.js
index 76d0af8f215..36fcdae938d 100644
--- a/group/groupui/creategroup-form.js
+++ b/group/groupui/creategroup-form.js
@@ -1,30 +1,30 @@
 
 function onCreateGroup() {
-	valid =  validateCreateGroupForm();
-	
-	if (valid) {
-		hideAllForms();
-		showElement("groupeditform");
-		createGroup();
-		replaceText('selectedgroupingforcreatinggroup', "");
-	}
-	
-	return false;
+    valid =  validateCreateGroupForm();
+
+    if (valid) {
+        hideAllForms();
+        showElement("groupeditform");
+        createGroup();
+        replaceText('selectedgroupingforcreatinggroup', "");
+    }
+
+    return false;
 }
 
 /*
  * Adds a group with the name specified in the form to the selected grouping. 
  */
 function createGroup() {
- 	//alert("Called createGroup");
- 	var url = "creategroup-xml.php";
+    //alert("Called createGroup");
+    var url = "creategroup-xml.php";
     var requeststring = "groupname="+getTextInputValue('newgroupname')
-    					+"&groupingid="+selectedgroupingid
-                        +"&description="+getTextInputValue('edit-newgroupdescription')
-                        +"&enrolmentkey="+getTextInputValue('newgroupenrolmentkey');
+        +"&groupingid="+selectedgroupingid
+        +"&description="+getTextInputValue('edit-newgroupdescription')
+        +"&enrolmentkey="+getTextInputValue('newgroupenrolmentkey');
     // The picture fields aren't displayed if the right library isn't present
     if (document.getElementById('menunewgrouphidepicture')) {
-    	requeststring = requeststring+"&hidepicture="+getTextInputValue('menunewgrouphidepicture');
+        requeststring = requeststring+"&hidepicture="+getTextInputValue('menunewgrouphidepicture');
     }
     sendPostRequest(request, url, requeststring, createGroupResponse);
 }
@@ -35,27 +35,27 @@ function createGroup() {
  */
 function createGroupResponse() {
     if (checkAjaxResponse(request)) {
-    	//alert("createGroupResponse called");
-      	//alert(request.responseText);
-      	error = getFromXML(request.responseXML, 'error');
-      	if (error != null) {
-      		alert(error);	
-      	}      	
-      	selectedgroupid = getFromXML(request.responseXML, 'groupid');
-      	updateGroupings();
-      	hideElement("creategroupform");
+        //alert("createGroupResponse called");
+        //alert(request.responseText);
+        error = getFromXML(request.responseXML, 'error');
+        if (error != null) {
+            alert(error);
+        }
+        selectedgroupid = getFromXML(request.responseXML, 'groupid');
+        updateGroupings();
+        hideElement("creategroupform");
     }
 }
 
 
 function validateCreateGroupForm() {
-	valid = true;
- 	groupname = getTextInputValue('newgroupname');
+    valid = true;
+    groupname = getTextInputValue('newgroupname');
 
- 	if (groupname == '') {
- 			alert('You must enter a name for the new group');
- 			valid = false;
- 	} 
-	return valid;
+    if (groupname == '') {
+        alert('You must enter a name for the new group');
+        valid = false;
+    } 
+    return valid;
 }
 
diff --git a/group/groupui/creategrouping-form.js b/group/groupui/creategrouping-form.js
index 8263f45cecb..2fb72ac8995 100644
--- a/group/groupui/creategrouping-form.js
+++ b/group/groupui/creategrouping-form.js
@@ -1,24 +1,24 @@
 
 
 function onCreateGrouping() {
-	valid =  validateCreateGroupingForm();
-	if (valid) {
-		hideAllForms();
-		showElement("groupeditform");
-		createGrouping();
-	}
-	
-	return false;
+    valid =  validateCreateGroupingForm();
+    if (valid) {
+        hideAllForms();
+        showElement("groupeditform");
+        createGrouping();
+    }
+
+    return false;
 }
 
 /**
  * Creates a new grouping for the course. 
  */
 function createGrouping() {
- 	// alert("Called createGrouping");
- 	var url = "creategrouping-xml.php";
+    // alert("Called createGrouping");
+    var url = "creategrouping-xml.php";
     var requeststring = "groupingname="+getTextInputValue('newgroupingname')
-    					+"&description="+getTextInputValue('edit-newgroupingdescription');
+        +"&description="+getTextInputValue('edit-newgroupingdescription');
     sendPostRequest(request, url, requeststring, createGroupingResponse);
  }
  
@@ -30,26 +30,26 @@ function createGrouping() {
     if (checkAjaxResponse(request)) {
     // alert("createGroupingResponse");
     // alert(request.responseText);
-      	error = getFromXML(request.responseXML, 'error');
-      	if (error != null) {
-      		alert(error);	
-      	}
-		selectedgroupingid = getFromXML(request.responseXML, 'groupingid');
-      	selectedgroupid = null;
-      	updateGroupings();
-      	hideElement("creategroupingform");
+        error = getFromXML(request.responseXML, 'error');
+        if (error != null) {
+            alert(error);
+        }
+        selectedgroupingid = getFromXML(request.responseXML, 'groupingid');
+        selectedgroupid = null;
+        updateGroupings();
+        hideElement("creategroupingform");
     }
-}
+ }
 
 function validateCreateGroupingForm() {
-	valid = true;
- 	groupingname = getTextInputValue('newgroupingname');
+    valid = true;
+    groupingname = getTextInputValue('newgroupingname');
 
- 	if (groupingname == '') {
- 			alert('You must enter a name for the new grouping');
- 			valid = false;
- 	} 
-	return valid;
+    if (groupingname == '') {
+        alert('You must enter a name for the new grouping');
+        valid = false;
+    } 
+    return valid;
 }
 
 
diff --git a/group/groupui/deletegroup.js b/group/groupui/deletegroup.js
index 888e21fe99a..541a21ca190 100644
--- a/group/groupui/deletegroup.js
+++ b/group/groupui/deletegroup.js
@@ -1,8 +1,8 @@
 function onDeleteGroup() {
-	hideAllForms()
-	showElement("groupeditform");
-	deleteGroup();
-	return false;
+    hideAllForms()
+    showElement("groupeditform");
+    deleteGroup();
+    return false;
 }
 
 
@@ -10,8 +10,8 @@ function onDeleteGroup() {
  * Deletes the selected group
  */
 function deleteGroup() {
- 	//alert("Called deleteGroup");
- 	var url = "deletegroup-xml.php";
+    //alert("Called deleteGroup");
+    var url = "deletegroup-xml.php";
     var requeststring = "groupid="+selectedgroupid;
     sendPostRequest(request, url, requeststring, deleteGroupResponse);
 }
@@ -21,15 +21,15 @@ function deleteGroup() {
  */ 
 function deleteGroupResponse() {
     if (checkAjaxResponse(request)) {
-    	//alert("deleteGroupResponse called");
-      	// alert(request.responseText);
-      	error = getFromXML(request.responseXML, 'error');
-      	if (error != null) {
-      		alert(error);	
-      	}      	
-      	// Need XML sent back with groupingid
-      	// Really want to set this to be the grouping before
-      	selectedgroupid = null;
-      	updateGroupings();
+        //alert("deleteGroupResponse called");
+        // alert(request.responseText);
+        error = getFromXML(request.responseXML, 'error');
+        if (error != null) {
+            alert(error);
+        }
+        // Need XML sent back with groupingid
+        // Really want to set this to be the grouping before
+        selectedgroupid = null;
+        updateGroupings();
     }
 }
diff --git a/group/groupui/deletegrouping.js b/group/groupui/deletegrouping.js
index 23952fdb664..2e9898583be 100644
--- a/group/groupui/deletegrouping.js
+++ b/group/groupui/deletegrouping.js
@@ -1,9 +1,9 @@
 
 function onDeleteGrouping() {
-	hideAllForms()
-	showElement("groupeditform");
-	deleteGrouping();
-	return false;
+    hideAllForms()
+    showElement("groupeditform");
+    deleteGrouping();
+    return false;
 }
 
 
@@ -11,8 +11,8 @@ function onDeleteGrouping() {
  * Deletes the selected grouping
  */
 function deleteGrouping() {
- 	//alert("Called deleteGrouping");
- 	var url = "deletegrouping-xml.php";
+    //alert("Called deleteGrouping");
+    var url = "deletegrouping-xml.php";
     var requeststring = "groupingid="+selectedgroupingid;
     confirm('Are you sure you want to delete this grouping and the groups that it contains?');
     sendPostRequest(request, url, requeststring, deleteGroupingResponse);
@@ -22,16 +22,16 @@ function deleteGrouping() {
  * The callback for the response to the request sent in deleteGrouping() 
  */
  function deleteGroupingResponse() {
-    if (checkAjaxResponse(request)) {
-    	//alert("deleteGroupingResponse called");
-      	//alert(request.responseText);
-      	error = getFromXML(request.responseXML, 'error');
-      	if (error != null) {
-      		alert(error);	
-      	}          	
-      	selectedgroupingid = null;
-      	selectedgroupid = null;
-      	updateGroupings();
+     if (checkAjaxResponse(request)) {
+         //alert("deleteGroupingResponse called");
+         //alert(request.responseText);
+         error = getFromXML(request.responseXML, 'error');
+         if (error != null) {
+             alert(error);
+         }
+         selectedgroupingid = null;
+         selectedgroupid = null;
+         updateGroupings();
     }
 }
 
diff --git a/group/groupui/editgroupingpermissions-form.js b/group/groupui/editgroupingpermissions-form.js
index e33ab93d207..c678d436f8c 100644
--- a/group/groupui/editgroupingpermissions-form.js
+++ b/group/groupui/editgroupingpermissions-form.js
@@ -1,9 +1,9 @@
 
 function onEditGroupingPermissionsSave() {
-	hideAllForms();
-	showElement("groupeditform");
-	editGroupingPermissions() ;
-	return false;
+    hideAllForms();
+    showElement("groupeditform");
+    editGroupingPermissions() ;
+    return false;
 }
 
 
@@ -11,16 +11,16 @@ function onEditGroupingPermissionsSave() {
  * Creates a new grouping for the course. 
  */
 function editGroupingPermissions() {
- 	var url = "editgroupingpermissions-xml.php";
+    var url = "editgroupingpermissions-xml.php";
     var requeststring = "groupingid=" + selectedgroupingid
-						+"&viewowngroup=" + getCheckBoxValue('edit-viewowngroup')
-    					+"&viewallgroupsmembers=" + getCheckBoxValue('edit-viewallgroupsmembers')
-    					+"&viewallgroupsactivities=" + getCheckBoxValue('edit-viewallgroupsactivities')
-    					+"&teachersgroupmark=" + getCheckBoxValue('edit-teachersgroupmark')
-						+"&teachersgroupview=" + getCheckBoxValue('edit-teachersgroupview')
-						+"&teachersoverride=" + getCheckBoxValue('edit-teachersoverride');
+        +"&viewowngroup=" + getCheckBoxValue('edit-viewowngroup')
+        +"&viewallgroupsmembers=" + getCheckBoxValue('edit-viewallgroupsmembers')
+        +"&viewallgroupsactivities=" + getCheckBoxValue('edit-viewallgroupsactivities')
+        +"&teachersgroupmark=" + getCheckBoxValue('edit-teachersgroupmark')
+        +"&teachersgroupview=" + getCheckBoxValue('edit-teachersgroupview')
+        +"&teachersoverride=" + getCheckBoxValue('edit-teachersoverride');
     sendPostRequest(request, url, requeststring, editGroupingPermissionsResponse);
- }
+}
  
  /**
   * The callback for the response to the request sent in editgroupingpermissions() 
@@ -28,39 +28,39 @@ function editGroupingPermissions() {
   */
  function editGroupingPermissionsResponse() {
     if (checkAjaxResponse(request)) {
-    	//alert("editGroupingPermissionsResponse called");
-      	//alert(request.responseText);
-      	error = getFromXML(request.responseXML, 'error');
-      	if (error != null) {
-      		alert(error);	
-      	}
-      	updateGroupings();
-      	hideElement("editgroupingpermissionsform");
+        //alert("editGroupingPermissionsResponse called");
+        //alert(request.responseText);
+        error = getFromXML(request.responseXML, 'error');
+        if (error != null) {
+            alert(error);
+        }
+        updateGroupings();
+        hideElement("editgroupingpermissionsform");
     }
-}
+ }
 
 function getGroupingPermissions() {
- 	//alert("Called getgroupingpermissions");
- 	var url = "getgroupingpermissions-xml.php";
+    //alert("Called getgroupingpermissions");
+    var url = "getgroupingpermissions-xml.php";
     var requeststring = "groupingid="+selectedgroupingid;
     sendPostRequest(request, url, requeststring, getGroupingPermissionsResponse);
 }
 
 function getGroupingPermissionsResponse() {
     if (checkAjaxResponse(request)) {
-    	//alert("getgroupingpermissionsResponse");
-      	//alert(request.responseText);
-      	error = getFromXML(request.responseXML, 'error');
-      	if (error != null) {
-      		alert(error);	
-      	}          	
-      	xml = request.responseXML;
-      	replaceText('editperm-groupingname', getFromXML(xml, 'name'));
-      	setCheckBoxValue('edit-viewowngroup', boolStringToBool(getFromXML(xml, 'viewowngroup')));
-      	setCheckBoxValue('edit-viewallgroupsmembers', boolStringToBool(getFromXML(xml, 'viewallgroupsmembers')));
-      	setCheckBoxValue('edit-viewallgroupsactivities', boolStringToBool(getFromXML(xml, 'viewallgroupsactivities')));
-      	setCheckBoxValue('edit-teachersgroupmark', boolStringToBool(getFromXML(xml, 'teachersgroupmark')));
-		setCheckBoxValue('edit-teachersgroupview', boolStringToBool(getFromXML(xml, 'teachersgroupview')));
-		setCheckBoxValue('edit-teachersoverride', boolStringToBool(getFromXML(xml, 'teachersoverride')));
+        //alert("getgroupingpermissionsResponse");
+        //alert(request.responseText);
+        error = getFromXML(request.responseXML, 'error');
+        if (error != null) {
+            alert(error);
+        }
+        xml = request.responseXML;
+        replaceText('editperm-groupingname', getFromXML(xml, 'name'));
+        setCheckBoxValue('edit-viewowngroup', boolStringToBool(getFromXML(xml, 'viewowngroup')));
+        setCheckBoxValue('edit-viewallgroupsmembers', boolStringToBool(getFromXML(xml, 'viewallgroupsmembers')));
+        setCheckBoxValue('edit-viewallgroupsactivities', boolStringToBool(getFromXML(xml, 'viewallgroupsactivities')));
+        setCheckBoxValue('edit-teachersgroupmark', boolStringToBool(getFromXML(xml, 'teachersgroupmark')));
+        setCheckBoxValue('edit-teachersgroupview', boolStringToBool(getFromXML(xml, 'teachersgroupview')));
+        setCheckBoxValue('edit-teachersoverride', boolStringToBool(getFromXML(xml, 'teachersoverride')));
     }
 }
diff --git a/group/groupui/editgroupingsettings-form.js b/group/groupui/editgroupingsettings-form.js
index ca7ca0a90cb..f8ecf5280c3 100644
--- a/group/groupui/editgroupingsettings-form.js
+++ b/group/groupui/editgroupingsettings-form.js
@@ -1,12 +1,12 @@
 
 function onEditGroupingSettingsSave() {
-	valid = validateEditGroupingSettingsForm();
-	if (valid) {
-		hideAllForms();
-		showElement("groupeditform");
-		editGroupingSettings() ;
-		return false;
-	}
+    valid = validateEditGroupingSettingsForm();
+    if (valid) {
+        hideAllForms();
+        showElement("groupeditform");
+        editGroupingSettings() ;
+        return false;
+    }
 }
 
 
@@ -14,12 +14,12 @@ function onEditGroupingSettingsSave() {
  * Creates a new grouping for the course. 
  */
 function editGroupingSettings() {
- 	var url = "editgroupingsettings-xml.php";
+    var url = "editgroupingsettings-xml.php";
     var requeststring = "groupingid="+selectedgroupingid
-						+"&groupingname="+getTextInputValue('edit-groupingname')
-						+"&description="+getTextInputValue('edit-edit-groupingdescription');
+        +"&groupingname="+getTextInputValue('edit-groupingname')
+        +"&description="+getTextInputValue('edit-edit-groupingdescription');
     sendPostRequest(request, url, requeststring, editGroupingSettingsResponse);
- }
+}
  
  /**
   * The callback for the response to the request sent in editgroupingsettings() 
@@ -27,49 +27,46 @@ function editGroupingSettings() {
   */
  function editGroupingSettingsResponse() {
     if (checkAjaxResponse(request)) {
-    	//alert("editGroupingSettingsResponse called");
-      	//alert(request.responseText);
-      	error = getFromXML(request.responseXML, 'error');
-      	if (error != null) {
-      		alert(error);	
-      	}
-      	updateGroupings();
-      	hideElement("editgroupingsettingsform");
+        //alert("editGroupingSettingsResponse called");
+        //alert(request.responseText);
+        error = getFromXML(request.responseXML, 'error');
+        if (error != null) {
+            alert(error);
+        }
+        updateGroupings();
+        hideElement("editgroupingsettingsform");
     }
-}
+ }
 
 function getGroupingSettings() {
- 	//alert("Called getgroupingsettings");
- 	var url = "getgroupingsettings-xml.php";
+    //alert("Called getgroupingsettings");
+    var url = "getgroupingsettings-xml.php";
     var requeststring = "groupingid="+selectedgroupingid;
     sendPostRequest(request, url, requeststring, getGroupingSettingsResponse);
 }
 
 function getGroupingSettingsResponse() {
     if (checkAjaxResponse(request)) {
-    	//alert("getgroupingsettingsResponse");
-      	//alert(request.responseText);
-      	error = getFromXML(request.responseXML, 'error');
-      	if (error != null) {
-      		alert(error);	
-      	}          	
-      	xml = request.responseXML;
-      	setTextInputValue('edit-groupingname', getFromXML(xml, 'name'));
-      	setTextInputValue('edit-edit-groupingdescription', getFromXML(xml, 'description'));
+        //alert("getgroupingsettingsResponse");
+        //alert(request.responseText);
+        error = getFromXML(request.responseXML, 'error');
+        if (error != null) {
+            alert(error);
+        }
+        xml = request.responseXML;
+        setTextInputValue('edit-groupingname', getFromXML(xml, 'name'));
+        setTextInputValue('edit-edit-groupingdescription', getFromXML(xml, 'description'));
     }
 }
 
 
 function validateEditGroupingSettingsForm() {
-	valid = true;
- 	groupingname = getTextInputValue('edit-groupingname');
+    valid = true;
+    groupingname = getTextInputValue('edit-groupingname');
 
- 	if (groupingname == '') {
- 			alert('You must enter a name for the new grouping');
- 			valid = false;
- 	} 
-	return valid;
+    if (groupingname == '') {
+        alert('You must enter a name for the new grouping');
+        valid = false;
+    } 
+    return valid;
 }
-
-
-
diff --git a/group/groupui/editgroupsettings-form.js b/group/groupui/editgroupsettings-form.js
index 7bd9e227252..f862c535788 100644
--- a/group/groupui/editgroupsettings-form.js
+++ b/group/groupui/editgroupsettings-form.js
@@ -1,28 +1,28 @@
 
 function onEditGroupSettingsSave() {
-	valid =  validateEditgroupsettingsForm();
-	if (valid) {
-		editgroupsettings() ;
-		hideAllForms();
-		showElement("groupeditform");
-	}
-	return false;
+    valid =  validateEditgroupsettingsForm();
+    if (valid) {
+        editgroupsettings() ;
+        hideAllForms();
+        showElement("groupeditform");
+    }
+    return false;
 }
 
 /**
  * Creates a new group for the course. 
  */
 function editGroupSettings() {
- 	// alert("Called editgroupsettings");
- 	var url = "editgroupsettings-xml.php";
+    // alert("Called editgroupsettings");
+    var url = "editgroupsettings-xml.php";
     var requeststring = "groupid="+selectedgroupid
-    					+"&groupname="+getTextInputValue('groupname')
-    					+"&description="+getTextInputValue('edit-groupdescription')
-    					+"&enrolmentkey="+getTextInputValue('enrolmentkey')
-    					+"&hidepicture="+hidepicture;
-        // The picture fields aren't displayed if the right library isn't present
+                +"&groupname="+getTextInputValue('groupname')
+                +"&description="+getTextInputValue('edit-groupdescription')
+                +"&enrolmentkey="+getTextInputValue('enrolmentkey')
+                +"&hidepicture="+hidepicture;
+    // The picture fields aren't displayed if the right library isn't present
     if (document.getElementById('menuhidepicture')) {
-    	requeststring = requeststring+"&hidepicture="+getTextInputValue('menuhidepicture');
+        requeststring = requeststring+"&hidepicture="+getTextInputValue('menuhidepicture');
     }
     sendPostRequest(request, url, requeststring, editGroupSettingsResponse);
  }
@@ -32,48 +32,47 @@ function editGroupSettings() {
   */
  function editGroupSettingsResponse() {
     if (checkAjaxResponse(request)) {
-    	// alert("editgroupsettingsResponse");
-      	// alert(request.responseText);
-      	error = getFromXML(request.responseXML, 'error');
-      	if (error != null) {
-      		alert(error);	
-      	}          	
-      	updateSelectedGrouping();
-      	hideElement("editgroupsettingsform");
+        // alert("editgroupsettingsResponse");
+        // alert(request.responseText);
+        error = getFromXML(request.responseXML, 'error');
+        if (error != null) {
+            alert(error);
+        }
+        updateSelectedGrouping();
+        hideElement("editgroupsettingsform");
     }
-}
+ }
 
 function getGroupSettings() {
- 	// alert("Called getgroupsettings");
- 	groupid = getSelectedGroup();
- 	var url = "getgroupsettings-xml.php";
+    // alert("Called getgroupsettings");
+    groupid = getSelectedGroup();
+    var url = "getgroupsettings-xml.php";
     var requeststring = "groupid="+groupid;
     sendPostRequest(request, url, requeststring, getGroupSettingsResponse);
 }
 
 function getGroupSettingsResponse() {
     if (checkAjaxResponse(request)) {
-    	// alert("getgroupsettingsResponse");
-      	// alert(request.responseText);
-      	error = getFromXML(request.responseXML, 'error');
-      	if (error != null) {
-      		alert(error);	
-      	}          	
-		xml = request.responseXML;
-      	setTextInputValue('groupname', getFromXML(xml, 'name'));
-      	setTextInputValue('edit-groupdescription', getFromXML(xml, 'description'));
-      	setTextInputValue('enrolmentkey', getFromXML(xml, 'enrolmentkey'));	
+        // alert("getgroupsettingsResponse");
+        // alert(request.responseText);
+        error = getFromXML(request.responseXML, 'error');
+        if (error != null) {
+            alert(error);
+        }
+        xml = request.responseXML;
+        setTextInputValue('groupname', getFromXML(xml, 'name'));
+        setTextInputValue('edit-groupdescription', getFromXML(xml, 'description'));
+        setTextInputValue('enrolmentkey', getFromXML(xml, 'enrolmentkey'));
     }
 }
 
 function validateEditgroupsettingsForm() {
-	valid = true;
- 	groupname = getTextInputValue('groupname');
+    valid = true;
+    groupname = getTextInputValue('groupname');
 
- 	if (groupname == '') {
- 			alert('You must enter a name for the new group');
- 			valid = false;
- 	} 
-	return valid;
+    if (groupname == '') {
+        alert('You must enter a name for the new group');
+        valid = false;
+    } 
+    return valid;
 }
-
diff --git a/group/groupui/main-buttons-form.js b/group/groupui/main-buttons-form.js
index c13880bfe79..887fac20717 100644
--- a/group/groupui/main-buttons-form.js
+++ b/group/groupui/main-buttons-form.js
@@ -1,66 +1,66 @@
 
 
 function onShowAddMembersForm() {
-	hideAllForms();
-	showElement("addmembersform");
-	updateNonMembers();
-	groupname = getSelectedGroupName();
-	replaceText('selectedgroup', groupname);
-	return false;
+    hideAllForms();
+    showElement("addmembersform");
+    updateNonMembers();
+    groupname = getSelectedGroupName();
+    replaceText('selectedgroup', groupname);
+    return false;
 }
 
 function onShowAddGroupsToGroupingForm() {
-	hideAllForms();
-	showElement("addgroupstogroupingform");
-	updateGroupsNotInGrouping();
-	groupingname = getSelectedGroupingName();
-	replaceText('selectedgroupingforaddinggroups', groupingname);
-	return false;
+    hideAllForms();
+    showElement("addgroupstogroupingform");
+    updateGroupsNotInGrouping();
+    groupingname = getSelectedGroupingName();
+    replaceText('selectedgroupingforaddinggroups', groupingname);
+    return false;
 }
 
 function onShowCreateGroupingForm() {
-	hideAllForms();
-	showElement("creategroupingform");
-	return false;
+    hideAllForms();
+    showElement("creategroupingform");
+    return false;
 }
 
 function onShowCreateGroupForm() {
-	hideAllForms();
-	showElement("creategroupform");
-	groupingname = getSelectedGroupingName();
-	replaceText('selectedgroupingforcreatinggroup', groupingname);
-	return false;
+    hideAllForms();
+    showElement("creategroupform");
+    groupingname = getSelectedGroupingName();
+    replaceText('selectedgroupingforcreatinggroup', groupingname);
+    return false;
 }
 
 function onShowEditGroupSettingsForm() {
-	hideAllForms();
-	showElement("editgroupsettingsform");
-	getGroupSettings();
-	return false;
+    hideAllForms();
+    showElement("editgroupsettingsform");
+    getGroupSettings();
+    return false;
 }
 
 function onShowEditGroupingPermissionsForm() {
-	hideAllForms();
-	showElement("editgroupingpermissionsform");
-	getGroupingPermissions();
-	return false;
+    hideAllForms();
+    showElement("editgroupingpermissionsform");
+    getGroupingPermissions();
+    return false;
 }
 
 function onShowEditGroupingSettingsForm() {
-	hideAllForms();
-	showElement("editgroupingsettingsform");
-	getGroupingSettings();
-	return false;
+    hideAllForms();
+    showElement("editgroupingsettingsform");
+    getGroupingSettings();
+    return false;
 }
 
 
 function onShowAutomaticGroupingForm() {
-	hideAllForms();
-	showElement("createautomaticgroupingform");
-	return false;
+    hideAllForms();
+    showElement("createautomaticgroupingform");
+    return false;
 }
 
 function onPrinterFriendly() {
-	document.location.href = "printgrouping.php?courseid="+courseid+"&groupingid="+selectedgroupingid;
-	return false;
+    document.location.href = "printgrouping.php?courseid="+courseid+"&groupingid="+selectedgroupingid;
+    return false;
 }
diff --git a/group/groupui/main-init-form.js b/group/groupui/main-init-form.js
index b4914e5073e..6b4679f843b 100644
--- a/group/groupui/main-init-form.js
+++ b/group/groupui/main-init-form.js
@@ -30,46 +30,42 @@ window.onload = initPage;
  *and adds the right javascript events to all the buttons etc. 
  */
 function initPage() {
-	// Check that we're using a recent enough version of javascript
-	if (!document.getElementById) {
-		return false;
-	}
-	updateGroupings();
+    // Check that we're using a recent enough version of javascript
+    if (!document.getElementById) {
+        return false;
+    }
+    updateGroupings();
 
-	addEvent('groupings', 'change', onGroupingChange);	
-	addEvent('groups', 'change', onGroupChange);
-	addEvent('deletegrouping', 'click', onDeleteGrouping);
-	addEvent('deletegroup', 'click', onDeleteGroup);
-	addEvent('removegroup', 'click', onRemoveGroup);
-	addEvent('removemembers', 'click', onRemoveMembers);
-	addEvent('showaddmembersform', 'click', onShowAddMembersForm);
-	addEvent('showaddgroupstogroupingform', 'click', onShowAddGroupsToGroupingForm);
-	addEvent('showcreategroupingform', 'click', onShowCreateGroupingForm);
-	addEvent('showcreategroupform', 'click', onShowCreateGroupForm);
-	addEvent('showeditgroupsettingsform', 'click', onShowEditGroupSettingsForm);	
-	addEvent('showeditgroupingsettingsform', 'click', onShowEditGroupingSettingsForm);
-	addEvent('showeditgroupingpermissionsform', 'click', onShowEditGroupingPermissionsForm);	
-	addEvent('showcreateautomaticgroupingform', 'click', onShowAutomaticGroupingForm);
-	addEvent('printerfriendly', 'click', onPrinterFriendly);	
-	addEvent('createautomaticgrouping', 'click', onCreateAutomaticGrouping);
-	addEvent('cancelcreateautomaticgrouping', 'click', onCancel);	
-	addEvent('addgroupstogrouping', 'click', onAddGroupsToGrouping);
-	addEvent('canceladdgroupstogrouping', 'click', onCancel);
-	addEvent('creategroup', 'click', onCreateGroup);	
-	addEvent('cancelcreategroup', 'click', onCancel);	
-	addEvent('creategrouping', 'click', onCreateGrouping);
-	addEvent('cancelcreategrouping', 'click', onCancel);	
-	addEvent('addmembers', 'click', onAddMembers);
-	addEvent('canceladdmembers', 'click', onCancel);
-	addEvent('showall', 'change', onShowAll);
-	addEvent('editgroupsettings', 'click', onEditGroupSettingsSave);	
-	addEvent('canceleditgroupsettings', 'click', onCancel);
-	addEvent('editgroupingsettings', 'click', onEditGroupingSettingsSave);	
-	addEvent('canceleditgroupingsettings', 'click', onCancel);	
-	addEvent('editgroupingpermissions', 'click', onEditGroupingPermissionsSave);	
-	addEvent('canceleditgroupingpermissions', 'click', onCancel);								
+    addEvent('groupings', 'change', onGroupingChange);
+    addEvent('groups', 'change', onGroupChange);
+    addEvent('deletegrouping', 'click', onDeleteGrouping);
+    addEvent('deletegroup', 'click', onDeleteGroup);
+    addEvent('removegroup', 'click', onRemoveGroup);
+    addEvent('removemembers', 'click', onRemoveMembers);
+    addEvent('showaddmembersform', 'click', onShowAddMembersForm);
+    addEvent('showaddgroupstogroupingform', 'click', onShowAddGroupsToGroupingForm);
+    addEvent('showcreategroupingform', 'click', onShowCreateGroupingForm);
+    addEvent('showcreategroupform', 'click', onShowCreateGroupForm);
+    addEvent('showeditgroupsettingsform', 'click', onShowEditGroupSettingsForm);
+    addEvent('showeditgroupingsettingsform', 'click', onShowEditGroupingSettingsForm);
+    addEvent('showeditgroupingpermissionsform', 'click', onShowEditGroupingPermissionsForm);
+    addEvent('showcreateautomaticgroupingform', 'click', onShowAutomaticGroupingForm);
+    addEvent('printerfriendly', 'click', onPrinterFriendly);
+    addEvent('createautomaticgrouping', 'click', onCreateAutomaticGrouping);
+    addEvent('cancelcreateautomaticgrouping', 'click', onCancel);
+    addEvent('addgroupstogrouping', 'click', onAddGroupsToGrouping);
+    addEvent('canceladdgroupstogrouping', 'click', onCancel);
+    addEvent('creategroup', 'click', onCreateGroup);
+    addEvent('cancelcreategroup', 'click', onCancel);
+    addEvent('creategrouping', 'click', onCreateGrouping);
+    addEvent('cancelcreategrouping', 'click', onCancel);
+    addEvent('addmembers', 'click', onAddMembers);
+    addEvent('canceladdmembers', 'click', onCancel);
+    addEvent('showall', 'change', onShowAll);
+    addEvent('editgroupsettings', 'click', onEditGroupSettingsSave);
+    addEvent('canceleditgroupsettings', 'click', onCancel);
+    addEvent('editgroupingsettings', 'click', onEditGroupingSettingsSave);
+    addEvent('canceleditgroupingsettings', 'click', onCancel);
+    addEvent('editgroupingpermissions', 'click', onEditGroupingPermissionsSave);
+    addEvent('canceleditgroupingpermissions', 'click', onCancel);
 }
- 
-
-
-
diff --git a/group/groupui/main-selects-form.js b/group/groupui/main-selects-form.js
index d936242a0e1..78dab510f25 100644
--- a/group/groupui/main-selects-form.js
+++ b/group/groupui/main-selects-form.js
@@ -6,80 +6,80 @@
 
 
 function onGroupingChange() {
-	hideAllForms();
-	showElement("groupeditform");
-	if (!document.getElementById('groupings')) {
-		alert('No groupings id element');	
-	} else {
-		groupingselect = document.getElementById('groupings');
-		selectedgroupingid = groupingselect.value;
-		selectedgroupid = null;
-		updateSelectedGrouping();
-	}
-	return false;
+    hideAllForms();
+    showElement("groupeditform");
+    if (!document.getElementById('groupings')) {
+        alert('No groupings id element');
+    } else {
+        groupingselect = document.getElementById('groupings');
+        selectedgroupingid = groupingselect.value;
+        selectedgroupid = null;
+        updateSelectedGrouping();
+    }
+    return false;
 }
 
 function onGroupChange() {
-	hideAllForms();
-	showElement("groupeditform");
-	selectedgroupid = getSelectedGroup();
-	updateSelectedGroup();
-	return false;
+    hideAllForms();
+    showElement("groupeditform");
+    selectedgroupid = getSelectedGroup();
+    updateSelectedGroup();
+    return false;
 }
 
 
 function getSelectedGroupingName() {
-	if (!document.getElementById('groupings')) {
-		alert('No groupings id element');	
-		value = null;
-	} else {
-		groupingselect = document.getElementById('groupings');
-		value = groupingselect.options[groupingselect.selectedIndex].firstChild.nodeValue;
-	}
-	return value;
+    if (!document.getElementById('groupings')) {
+        alert('No groupings id element');
+        value = null;
+    } else {
+        groupingselect = document.getElementById('groupings');
+        value = groupingselect.options[groupingselect.selectedIndex].firstChild.nodeValue;
+    }
+    return value;
 }
 
 function getSelectedGroupName() {
-	if (!document.getElementById('groups')) {
-		alert('No groups id element');	
-		value = null;
-	} else {
-		groupselect = document.getElementById('groups');
-		value = groupselect.options[groupselect.selectedIndex].firstChild.nodeValue;
-	}
-	return value;
+    if (!document.getElementById('groups')) {
+        alert('No groups id element');
+        value = null;
+    } else {
+        groupselect = document.getElementById('groups');
+        value = groupselect.options[groupselect.selectedIndex].firstChild.nodeValue;
+    }
+    return value;
 }
 
 /*
  * Set the selected grouping on the form to the grouping whose id is selectedgroupingid
  */
 function setSelectedGrouping() {
-	if (selectedgroupingid == null) {
-		selectedgroupingid = getFirstOption("groupings");
-	}
-	
-	if (selectedgroupingid != null) {
-		if (!document.getElementById('groupings')) {
-			alert('No groupings id element');
-		} else {
-			groupingselect = document.getElementById('groupings');
-			groupingselect.value = selectedgroupingid
-		}
-	}
+    if (selectedgroupingid == null) {
+        selectedgroupingid = getFirstOption("groupings");
+    }
+
+    if (selectedgroupingid != null) {
+        if (!document.getElementById('groupings')) {
+            alert('No groupings id element');
+        } else {
+            groupingselect = document.getElementById('groupings');
+            groupingselect.value = selectedgroupingid
+        }
+    }
 }
 
 /*
  * Get the id of the group that is currently selected
  */
 function getSelectedGroup() {
-	if (!document.getElementById('groups')) {
-		alert('No groups id element');
-		value = null;
-	} else {
-		groupselect = document.getElementById('groups');
-		value = groupselect.value;
-	}
-	return value;
+    if (!document.getElementById('groups')) {
+        alert('No groups id element');
+        value = null;
+    } else {
+        groupselect = document.getElementById('groups');
+        value = groupselect.value;
+    }
+    return value;
 }
 
 /*
@@ -87,17 +87,17 @@ function getSelectedGroup() {
  */
 function setSelectedGroup() {
     if (selectedgroupid == null) {
-		selectedgroupid = getFirstOption("groups");
-	}
-	
-	if (selectedgroupid != null) {
-		if (!document.getElementById('groups')) {
-			alert('No groups id element');
-		} else {
-			groupselect = document.getElementById('groups');
-			groupselect.value = selectedgroupid;
-		}
-	}
+        selectedgroupid = getFirstOption("groups");
+    }
+
+    if (selectedgroupid != null) {
+        if (!document.getElementById('groups')) {
+            alert('No groups id element');
+        } else {
+            groupselect = document.getElementById('groups');
+            groupselect.value = selectedgroupid;
+        }
+    }
 }
 
 
@@ -105,7 +105,7 @@ function setSelectedGroup() {
  * Get the selected users to delete 
  */
 function getSelectedUsers() {
-	return getMultipleSelect("members")
+    return getMultipleSelect("members")
 }
 
 
@@ -119,12 +119,12 @@ function getSelectedUsers() {
  * the first grouping as selected. 
  */
 function updateGroupings() {
-	alert("updateGroupings called");
-  	var url = "getgroupings-xml.php";
-  	requeststring = 'courseid='+courseid+'&'+'sesskey='+sesskey;
-  	var transaction = YAHOO.util.Connect.asyncRequest('POST', url, 
-  	                                   updateGroupingsResponseCallback, requeststring); 
-  	//sendPostRequest(updategroupingsrequest, url, requeststring, updateGroupingsResponse);
+    alert("updateGroupings called");
+    var url = "getgroupings-xml.php";
+    requeststring = 'courseid='+courseid+'&'+'sesskey='+sesskey;
+    var transaction = YAHOO.util.Connect.asyncRequest('POST', url, 
+            updateGroupingsResponseCallback, requeststring); 
+    //sendPostRequest(updategroupingsrequest, url, requeststring, updateGroupingsResponse);
 }
 
 var updateGroupingsResponseCallback = 
@@ -132,36 +132,36 @@ var updateGroupingsResponseCallback =
   success:function(o) {
 
         // alert("updateGroupingsResponse called");
-      	var xmlDoc = o.responseXML;
-      	error = getFromXML(o.responseXML, 'error');
-      	if (error != null) {
-      		alert(error);	
-      	}       	
-      	// alert(o.responseXML);
-      	var noofoptions = addOptionsFromXML("groupings", xmlDoc);
-      	
-      	// If the selected grouping is not set, set it to the first grouping in the list
-  		if(selectedgroupingid == null) {
-  			selectedgroupingid = getFirstOption("groupings");
-  			selectedgroupid = null;
-  		}
-  		
-  		// If there are no groupings, make sure the rest of the form is set up appropriately 
-  		// i.e. there should be any groups or members shown and various buttons should be disabled
-  		// If there are groupings, update the one that is selected and enable any buttons that
-  		// might have been disabled.
-  		if (noofoptions == 0) {
-  			removeOptions("groups");
-      		removeOptions("members");
-      		disableButton("showaddmembersform");
-      		disableButton("showcreategroupform");
-      		disableButton("showaddgroupstogroupingform");
-      	} else {
-      		updateSelectedGrouping();
-      		enableButton("showaddmembersform");
-      		enableButton("showcreategroupform");
-      		enableButton("showaddgroupstogroupingform");
-      	}
+        var xmlDoc = o.responseXML;
+        error = getFromXML(o.responseXML, 'error');
+        if (error != null) {
+            alert(error);
+        }
+        // alert(o.responseXML);
+        var noofoptions = addOptionsFromXML("groupings", xmlDoc);
+
+        // If the selected grouping is not set, set it to the first grouping in the list
+        if(selectedgroupingid == null) {
+            selectedgroupingid = getFirstOption("groupings");
+            selectedgroupid = null;
+        }
+
+        // If there are no groupings, make sure the rest of the form is set up appropriately 
+        // i.e. there should be any groups or members shown and various buttons should be disabled
+        // If there are groupings, update the one that is selected and enable any buttons that
+        // might have been disabled.
+        if (noofoptions == 0) {
+            removeOptions("groups");
+            removeOptions("members");
+            disableButton("showaddmembersform");
+            disableButton("showcreategroupform");
+            disableButton("showaddgroupstogroupingform");
+        } else {
+            updateSelectedGrouping();
+            enableButton("showaddmembersform");
+            enableButton("showcreategroupform");
+            enableButton("showaddgroupstogroupingform");
+        }
 }, 
   failure:responseFailure, 
 };
@@ -175,11 +175,11 @@ var updateGroupingsResponseCallback =
  * selectedgroupingid cannot be null. 
  */
 function updateSelectedGrouping() {
-	//alert("UpdateSelectedGrouping called");
-	setSelectedGrouping();	
+    //alert("UpdateSelectedGrouping called");
+    setSelectedGrouping();
     var url = "getgroupsingrouping-xml.php";
     requeststring = "groupingid="+selectedgroupingid;
-	sendPostRequest(updateselectedgroupingsrequest, url, requeststring, updateSelectedGroupingResponse);
+    sendPostRequest(updateselectedgroupingsrequest, url, requeststring, updateSelectedGroupingResponse);
 }
 
 /**
@@ -187,25 +187,25 @@ function updateSelectedGrouping() {
  */
 function updateSelectedGroupingResponse() {
     if (checkAjaxResponse(updateselectedgroupingsrequest)) {
-    	//alert("updateSelectedGroupingResponse called");
-      	var xmlDoc = updateselectedgroupingsrequest.responseXML;
-      	error = getFromXML(updateselectedgroupingsrequest.responseXML, 'error');
-      	if (error != null) {
-      		alert(error);	
-      	}         	
-      	// alert(updateselectedgroupingsrequest.responseText);
-      	var noofoptions = addOptionsFromXML("groups", xmlDoc);
-      	if (selectedgroupid == null) {
-			selectedgroupid = getFirstOption("groups");
-		}
-		
-      	if (noofoptions == 0) {
-      		removeOptions("members");
-      		disableButton("showaddmembersform");
-      	} else {
-      		updateSelectedGroup(selectedgroupid);
-      		enableButton("showaddmembersform");
-      	}	
+        //alert("updateSelectedGroupingResponse called");
+        var xmlDoc = updateselectedgroupingsrequest.responseXML;
+        error = getFromXML(updateselectedgroupingsrequest.responseXML, 'error');
+        if (error != null) {
+            alert(error);
+        }
+        // alert(updateselectedgroupingsrequest.responseText);
+        var noofoptions = addOptionsFromXML("groups", xmlDoc);
+        if (selectedgroupid == null) {
+            selectedgroupid = getFirstOption("groups");
+        }
+
+        if (noofoptions == 0) {
+            removeOptions("members");
+            disableButton("showaddmembersform");
+        } else {
+            updateSelectedGroup(selectedgroupid);
+            enableButton("showaddmembersform");
+        }
     } 
 }
 
@@ -213,7 +213,7 @@ function updateSelectedGroupingResponse() {
  *  Updates the members for the selected group - currently none marked as selected
  */
 function updateSelectedGroup() {
-	//alert("updateSelectedGroup");
+    //alert("updateSelectedGroup");
     setSelectedGroup();
     var url = "getmembers-xml.php";
     var requeststring = "groupid="+selectedgroupid;
@@ -225,16 +225,14 @@ function updateSelectedGroup() {
  */
 function updateSelectedGroupResponse() {
     if (checkAjaxResponse(updateselectedgrouprequest)) {
-      	var xmlDoc = updateselectedgrouprequest.responseXML;    
-    	//alert("updateSelectedGroupResponse");
-      	error = getFromXML(xmlDoc, 'error');
-      	if (error != null) {
-      		alert(error);	
-      	}     	
+        var xmlDoc = updateselectedgrouprequest.responseXML;    
+        //alert("updateSelectedGroupResponse");
+        error = getFromXML(xmlDoc, 'error');
+        if (error != null) {
+            alert(error);
+        }
 
-      	//alert(request.responseText);
-      	var noofoptions = addOptionsFromXML("members", xmlDoc);   	
+        //alert(request.responseText);
+        var noofoptions = addOptionsFromXML("members", xmlDoc);
     } 
 }
-
-
diff --git a/group/groupui/util-form.js b/group/groupui/util-form.js
index 84be35edd55..af7b1c8e29e 100644
--- a/group/groupui/util-form.js
+++ b/group/groupui/util-form.js
@@ -8,47 +8,47 @@
  * Disable the button with the specified id
  */
 function disableButton(id) {
-	if (!document.getElementById(id)) {
-		showNoElementError(id) 
-	} else {
-		var node = document.getElementById(id);
-		node.disabled = true;
-	}
+    if (!document.getElementById(id)) {
+        showNoElementError(id) 
+    } else {
+        var node = document.getElementById(id);
+        node.disabled = true;
+    }
 }
 
 /**
  * Enable the button with the specified id
  */
 function enableButton(id) {
-	if (!document.getElementById(id)) {
-		showNoElementError(id) 
-	} else {
-		var node = document.getElementById(id);
-		node.disabled = false;
-	}
+    if (!document.getElementById(id)) {
+        showNoElementError(id) 
+    } else {
+        var node = document.getElementById(id);
+        node.disabled = false;
+    }
 }
 
 /**
  * Show the form with the specified id
  */
 function showElement(id) {
-	if (!document.getElementById(id)) {
-		showNoElementError(id) 
-	} else {
-		document.getElementById(id).style.visibility = "visible";
-	}
+    if (!document.getElementById(id)) {
+        showNoElementError(id) 
+    } else {
+        document.getElementById(id).style.visibility = "visible";
+    }
 }
 
 /** 
  * Hide the form with the specified id
  */
 function hideElement(id) {
-	if (!document.getElementById(id)) {
-		showNoElementError(id) 
-	} else {
-		var node = document.getElementById(id);
-		node.style.visibility = "hidden";
-	}
+    if (!document.getElementById(id)) {
+        showNoElementError(id) 
+    } else {
+        var node = document.getElementById(id);
+        node.style.visibility = "hidden";
+    }
 }
 
 
@@ -56,114 +56,114 @@ function hideElement(id) {
  * Hides all the extra forms in form.html
  */
 function hideAllForms() {
-	hideElement("addmembersform");
-	hideElement("addgroupstogroupingform");
-	hideElement("creategroupingform");
-	hideElement("createautomaticgroupingform");
-	hideElement("creategroupform");
-	hideElement("editgroupingsettingsform");
-	hideElement("editgroupingpermissionsform");
-	hideElement("editgroupsettingsform");
-	hideElement("groupeditform");
+    hideElement("addmembersform");
+    hideElement("addgroupstogroupingform");
+    hideElement("creategroupingform");
+    hideElement("createautomaticgroupingform");
+    hideElement("creategroupform");
+    hideElement("editgroupingsettingsform");
+    hideElement("editgroupingpermissionsform");
+    hideElement("editgroupsettingsform");
+    hideElement("groupeditform");
 }
 
 function onCancel() {
-	hideAllForms();
-	showElement("groupeditform");
-	return false;
+    hideAllForms();
+    showElement("groupeditform");
+    return false;
 }
 
 
 function addEvent(id, eventtype, fn){ 
-	if (!document.getElementById(id)) {
-		alert('No ' + id + ' element');
-		return false;
-	} else {
-		obj = document.getElementById(id); 
-	}
-	
-	if (obj.addEventListener) {
-		obj.addEventListener(eventtype, fn, false );
-	} else if (obj.attachEvent) {
-		obj["e"+ eventtype +fn] = fn;
-		obj[eventtype+fn] = function() { obj["e"+ eventtype +fn]( window.event ); }
-		obj.attachEvent( "on"+ eventtype , obj[eventtype+fn] );
-	} else {
-		obj["on"+type] = obj["e"+ eventtype +fn];
-	} 
+    if (!document.getElementById(id)) {
+        alert('No ' + id + ' element');
+        return false;
+    } else {
+        obj = document.getElementById(id); 
+    }
+
+    if (obj.addEventListener) {
+        obj.addEventListener(eventtype, fn, false );
+    } else if (obj.attachEvent) {
+        obj["e"+ eventtype +fn] = fn;
+        obj[eventtype+fn] = function() { obj["e"+ eventtype +fn]( window.event ); }
+        obj.attachEvent( "on"+ eventtype , obj[eventtype+fn] );
+    } else {
+        obj["on"+type] = obj["e"+ eventtype +fn];
+    } 
 }
 
 /**
  * Gets the value of the first option in a select
  */
 function getFirstOption(id) {
-	if (document.getElementById(id)) {
-		var node = document.getElementById(id);
-		if (node.hasChildNodes()) {
-			var children 
-			firstoption = node.firstChild;
-			if (firstoption.value) {
-				value = firstoption.value;
-			} else {
-				value = null;
-			}
-		} else {
-			value = null;
-		}
-	} else {
-		value = null;
-	}
-	return value;
+    if (document.getElementById(id)) {
+        var node = document.getElementById(id);
+        if (node.hasChildNodes()) {
+            var children 
+                firstoption = node.firstChild;
+            if (firstoption.value) {
+                value = firstoption.value;
+            } else {
+                value = null;
+            }
+        } else {
+            value = null;
+        }
+    } else {
+        value = null;
+    }
+    return value;
 }
 
 /* 
  *Turn the values from a multiple select to a comma-separated list
 */
 function getMultipleSelect(id) {
-	if (!document.getElementById(id)) {
-		showNoElementError(id) 
-	} else {
-	node = document.getElementById(id);
-	}
-	var selected = ""	
+    if (!document.getElementById(id)) {
+        showNoElementError(id) 
+    } else {
+        node = document.getElementById(id);
+    }
+    var selected = ""
 
- 	for (var i = 0; i < node.options.length; i++) {
- 		if (node.options[i].selected) { 
- 			selected = selected + node.options[ i ].value + ",";
- 		}
- 	}
- 	// Remove the last comma - there must be a nicer way of doing this!
- 	// Maybe easier with regular expressions?
- 	var length = selected.length;
- 	if (selected.charAt(length - 1) == ',') {
- 		selected = selected.substring(0, length -1);
- 	}
- 	
- 	return selected;
+    for (var i = 0; i < node.options.length; i++) {
+        if (node.options[i].selected) { 
+            selected = selected + node.options[ i ].value + ",";
+        }
+    }
+    // Remove the last comma - there must be a nicer way of doing this!
+    // Maybe easier with regular expressions?
+    var length = selected.length;
+    if (selected.charAt(length - 1) == ',') {
+        selected = selected.substring(0, length -1);
+    }
+
+    return selected;
 }
 
 /*
  * Creates an option in a select element with the specified id with the given name and value.
 */
 function createOption(id, value, name) {
-	var node = document.getElementById(id);
-	var option = document.createElement("option");
-	option.setAttribute("value", value);
-	node.appendChild(option);
-	var namenode = document.createTextNode(name);
-	option.appendChild(namenode);
+    var node = document.getElementById(id);
+    var option = document.createElement("option");
+    option.setAttribute("value", value);
+    node.appendChild(option);
+    var namenode = document.createTextNode(name);
+    option.appendChild(namenode);
 }
 
 /*
  * Removes all the options from a select with a given id
 */
 function removeOptions(id) {
-	var node = document.getElementById(id);
+    var node = document.getElementById(id);
 
-	while (node.hasChildNodes())
-	{
-	  node.removeChild(node.firstChild);
-	}
+    while (node.hasChildNodes())
+    {
+        node.removeChild(node.firstChild);
+    }
 }
 
 /*
@@ -174,24 +174,24 @@ function removeOptions(id) {
  * @return The number of options added
  */
 function addOptionsFromXML(id, xmlDoc) {
-	// Clear any options that are already there. 
-	removeOptions(id);
+    // Clear any options that are already there. 
+    removeOptions(id);
 
-	var optionelements = xmlDoc.getElementsByTagName('option');
-	var nameelements = xmlDoc.getElementsByTagName('name');
-	var valueelements = xmlDoc.getElementsByTagName('value');
+    var optionelements = xmlDoc.getElementsByTagName('option');
+    var nameelements = xmlDoc.getElementsByTagName('name');
+    var valueelements = xmlDoc.getElementsByTagName('value');
 
-	if (nameelements != null) {
-		for (var i = 0; i < nameelements.length; i++) {
-			var name = nameelements[i].firstChild.nodeValue;
-			var value = valueelements[i].firstChild.nodeValue;
-			createOption(id, value, name);
-		}
-		noofoptions = nameelements.length;
-	} else {
-		noofoptions = 0;
-	}
-	return noofoptions;
+    if (nameelements != null) {
+        for (var i = 0; i < nameelements.length; i++) {
+            var name = nameelements[i].firstChild.nodeValue;
+            var value = valueelements[i].firstChild.nodeValue;
+            createOption(id, value, name);
+        }
+        noofoptions = nameelements.length;
+    } else {
+        noofoptions = 0;
+    }
+    return noofoptions;
 }
 
 /*
@@ -199,116 +199,116 @@ function addOptionsFromXML(id, xmlDoc) {
  * If it contains more than one such tag, it only return the value from the first one. 
  */
 function getErrorFromXML(xmlDoc) {
-	alert(xmlDoc.getElementsByTagName('error'));
-	if (!xmlDoc.getElementsByTagName('error')) {
-		value = null;
-	} else {
-		var errorelement = xmlDoc.getElementsByTagName('error')[0];
-		var value = errorelement.firstChild.nodeValue;
-	}
-	return value;
+    alert(xmlDoc.getElementsByTagName('error'));
+    if (!xmlDoc.getElementsByTagName('error')) {
+        value = null;
+    } else {
+        var errorelement = xmlDoc.getElementsByTagName('error')[0];
+        var value = errorelement.firstChild.nodeValue;
+    }
+    return value;
 }
 
 
 function addChildrenFromXML(parentnode, xmlparentnode) {
-	xmlChildNodes = xmlparentnode.childNodes;
-	length = xmlChildNodes.length;
-	for (i = 0; i < length; i++) {
-		child = parentnode.appendChild(parentnode, xmlChildNodes[i]);
-		addChildrenFromXML(child, xmlChildNodes[i])
-	}
+    xmlChildNodes = xmlparentnode.childNodes;
+    length = xmlChildNodes.length;
+    for (i = 0; i < length; i++) {
+        child = parentnode.appendChild(parentnode, xmlChildNodes[i]);
+        addChildrenFromXML(child, xmlChildNodes[i])
+    }
 }
 
 function getTextInputValue(id) {
-	if (!document.getElementById(id)) {
-		showNoElementError(id) 
-		value = null;
-	} else {
-		textinput = document.getElementById(id);
-		value = textinput.value;
-	}
-	return value;
+    if (!document.getElementById(id)) {
+        showNoElementError(id) 
+            value = null;
+    } else {
+        textinput = document.getElementById(id);
+        value = textinput.value;
+    }
+    return value;
 }
 
 function setTextInputValue(id, value) {
-	if (!document.getElementById(id)) {
-		showNoElementError(id); 
-		value = null;
-	} else {
-		textinput = document.getElementById(id);
-		textinput.value = value;
-	}
+    if (!document.getElementById(id)) {
+        showNoElementError(id); 
+        value = null;
+    } else {
+        textinput = document.getElementById(id);
+        textinput.value = value;
+    }
 }
 
 function getCheckBoxValue(id) {
-	if (!document.getElementById(id)) {
-		showNoElementError(id); 
-		value= null;
-	} else {
-		checkbox = document.getElementById(id);
-		value = checkbox.checked;
-	}
-	return  boolToInt(value);
+    if (!document.getElementById(id)) {
+        showNoElementError(id); 
+        value= null;
+    } else {
+        checkbox = document.getElementById(id);
+        value = checkbox.checked;
+    }
+    return  boolToInt(value);
 }
 
 function boolStringToBool(boolstring) {
-	if (boolstring == 'true') {
-	 return true;
-	 } else {
-	 return false;
-	 }
+    if (boolstring == 'true') {
+        return true;
+    } else {
+        return false;
+    }
 }
 
 function boolToInt(boolean) {
- 	if (boolean) {
-	 	return '1';
-	} else if (boolean == false) {
-	 	return '0';
-	} else {
-	return boolean;
-	}
+    if (boolean) {
+        return '1';
+    } else if (boolean == false) {
+        return '0';
+    } else {
+        return boolean;
+    }
 }
 
 function setCheckBoxValue(id, checked) {
-	if (!document.getElementById(id)) {
-		showNoElementError(id); 
-	} else {
-		checkbox = document.getElementById(id);
-		checkbox.checked = checked;
-	}
+    if (!document.getElementById(id)) {
+        showNoElementError(id); 
+    } else {
+        checkbox = document.getElementById(id);
+        checkbox.checked = checked;
+    }
 }
 
 function replaceText(id, text) {
-	if (!document.getElementById(id)) {
-		showNoElementError(id) 
-		value = null;
-	} else {
-		element = document.getElementById(id);
-		    if (element.childNodes) {
-      for (var i = 0; i < element.childNodes.length; i++) {
-        var childNode = element.childNodes[i];
-        element.removeChild(childNode);
-      }
+    if (!document.getElementById(id)) {
+        showNoElementError(id) 
+            value = null;
+    } else {
+        element = document.getElementById(id);
+        if (element.childNodes) {
+            for (var i = 0; i < element.childNodes.length; i++) {
+                var childNode = element.childNodes[i];
+                element.removeChild(childNode);
+            }
+        }
+        var textnode = document.createTextNode(text);
+        element.appendChild(textnode);
     }
-		var textnode = document.createTextNode(text);
-		element.appendChild(textnode);
-	}
 }
 
 
- function getRadioValue(radioelement) {
- 	value = "";
-	if (!radioelement) {
-		value = "";
-	}
-	
+function getRadioValue(radioelement) {
+    value = "";
+    if (!radioelement) {
+        value = "";
+    }
 
-	for(var i = 0; i < radioelement.length; i++) {
-		if(radioelement[i].checked) {
-			value =  radioelement[i].value;
-		}
-	}
-	return value;
+
+    for(var i = 0; i < radioelement.length; i++) {
+        if(radioelement[i].checked) {
+            value =  radioelement[i].value;
+        }
+    }
+    return value;
 }
 
 /*
@@ -316,43 +316,43 @@ function replaceText(id, text) {
  * If it contains more than one such tag, it only return the value from the first one. 
  */
 function getFromXML(xmlDoc, id) {
-	if (!xmlDoc.getElementsByTagName(id)) {
-		var value = null;
-	} else if (xmlDoc.getElementsByTagName(id).length == 0) {
-		var value = null;
-	} else {
-		var element = xmlDoc.getElementsByTagName(id)[0];
-		if (!element.firstChild) {
-			var value = '';
-		} else {
-			var value = element.firstChild.nodeValue;
-		}
-	}
-	
-	return value;
+    if (!xmlDoc.getElementsByTagName(id)) {
+        var value = null;
+    } else if (xmlDoc.getElementsByTagName(id).length == 0) {
+        var value = null;
+    } else {
+        var element = xmlDoc.getElementsByTagName(id)[0];
+        if (!element.firstChild) {
+            var value = '';
+        } else {
+            var value = element.firstChild.nodeValue;
+        }
+    }
+
+    return value;
 }
 
 function showNoElementError(id) {
-	alert('Error: No ' + id +' element');
+    alert('Error: No ' + id +' element');
 }
 
 function isPositiveInt(str) {
-	isPosInt = true;
-	
-	var i = parseInt (str);
+    isPosInt = true;
 
-	if (isNaN (i)) {
-		isPosInt = false;
-	} 
-	
-	if (i < 0) {
-		isPosInt = false;
-		// Check not characters at the end of the number
-	} 
-	
-	if (i.toString() != str) {
-		isPosInt = false;
-	}
-	return isPosInt ;
+    var i = parseInt (str);
+
+    if (isNaN (i)) {
+        isPosInt = false;
+    } 
+
+    if (i < 0) {
+        isPosInt = false;
+        // Check not characters at the end of the number
+    } 
+
+    if (i.toString() != str) {
+        isPosInt = false;
+    }
+    return isPosInt ;
 }