Index: lams_tool_larsrc/web/includes/javascript/rsrccommon.js
===================================================================
RCS file: /usr/local/cvsroot/lams_tool_larsrc/web/includes/javascript/rsrccommon.js,v
diff -u -r1.3.4.1 -r1.3.4.2
--- lams_tool_larsrc/web/includes/javascript/rsrccommon.js	19 May 2016 04:22:36 -0000	1.3.4.1
+++ lams_tool_larsrc/web/includes/javascript/rsrccommon.js	6 Mar 2017 11:21:54 -0000	1.3.4.2
@@ -9,4 +9,13 @@
 		if(div != null){
 			document.getElementById(targetDiv+"_Busy").style.display = 'none';
 		}				
-	}
\ No newline at end of file
+	}
+	function disableButtons() {
+		$('.btn-disable-on-submit').prop('disabled', true);
+		$("#saveCancelButtons .btn").prop('disabled', true);
+	}
+	function enableButtons() {
+		$('.btn-disable-on-submit').prop('disabled', false);
+		$("#saveCancelButtons .btn").prop('disabled', false);
+	}
+
Index: lams_tool_larsrc/web/includes/javascript/rsrcresourceitem.js
===================================================================
RCS file: /usr/local/cvsroot/lams_tool_larsrc/web/includes/javascript/rsrcresourceitem.js,v
diff -u -r1.13.2.3 -r1.13.2.4
--- lams_tool_larsrc/web/includes/javascript/rsrcresourceitem.js	1 Mar 2017 00:29:02 -0000	1.13.2.3
+++ lams_tool_larsrc/web/includes/javascript/rsrcresourceitem.js	6 Mar 2017 11:21:54 -0000	1.13.2.4
@@ -37,13 +37,15 @@
 		$('textarea').trigger('change');
 		
 	    var param = $("#instructionForm").serialize();
+	    disableButtons();
 		addInstructionLoading();
 		
 	    $.post(
 	    	addInstructionUrl, 
 	    	param, 
 	    	function(xml) {
                $('#instructionArea').html(xml);
+               enableButtons();
 	    	}
 	    );
 	    
@@ -109,8 +111,8 @@
 
 		document.getElementById("instructionList").value = $("#instructionForm").serialize();
 		var formData = new FormData(document.getElementById("resourceItemForm"));
+		disableButtons();
 		showBusy(instructionTargetDiv);
-		
 		// after submit, it direct to itemlist.jsp, 
 		// then refresh "basic tab" resource list and close this window.
 	    $.ajax({ // create an AJAX call...
@@ -121,6 +123,9 @@
 			url: $("#resourceItemForm").attr('action'),
 			success: function(data) {
                $('#resourceInputArea').html(data);
+			},
+			complete: function() {
+				enableButtons();
 			}
 	    });
 	    
Index: lams_tool_larsrc/web/pages/authoring/basic.jsp
===================================================================
RCS file: /usr/local/cvsroot/lams_tool_larsrc/web/pages/authoring/basic.jsp,v
diff -u -r1.28.2.3 -r1.28.2.4
--- lams_tool_larsrc/web/pages/authoring/basic.jsp	20 Aug 2016 06:50:06 -0000	1.28.2.3
+++ lams_tool_larsrc/web/pages/authoring/basic.jsp	6 Mar 2017 11:21:54 -0000	1.28.2.4
@@ -4,14 +4,15 @@
 
 <c:set var="formBean" value="<%=request.getAttribute(org.apache.struts.taglib.html.Constants.BEAN_KEY)%>" />
 <script lang="javascript">
-
-
 	function showResourceItem(url) {
+		disableButtons();
 		$.ajaxSetup({ cache: true });
 		$("#resourceInputArea").load(url, function() {
 			$(this).show();
 			$("#saveCancelButtons").hide();
+			enableButtons();
 		});
+		return false;
 	}
 	function hideResourceItem(){
 		$("#resourceInputArea").hide();
@@ -94,14 +95,14 @@
 </div>
 
 <div class="form-inline">
-	<a href="javascript:showResourceItem('<html:rewrite page="/authoring/newItemInit.do?sessionMapID=${formBean.sessionMapID}&itemType=1"/>');" class="btn btn-default btn-sm">
-		<i class="fa fa-plus"></i>&nbsp;<fmt:message key="label.authoring.basic.add.url" /></a> 
-	<a href="javascript:showResourceItem('<html:rewrite page="/authoring/newItemInit.do?sessionMapID=${formBean.sessionMapID}&itemType=2"/>');"  class="btn btn-default btn-sm loffset5">
-		<i class="fa fa-plus"></i>&nbsp;<fmt:message key="label.authoring.basic.add.file" /></a>
-	<a href="javascript:showResourceItem('<html:rewrite page="/authoring/newItemInit.do?sessionMapID=${formBean.sessionMapID}&itemType=3"/>');" class="btn btn-default btn-sm loffset5">
-		<i class="fa fa-plus"></i>&nbsp;<fmt:message key="label.authoring.basic.add.website" /></a>
-	<a href="javascript:showResourceItem('<html:rewrite page="/authoring/newItemInit.do?sessionMapID=${formBean.sessionMapID}&itemType=4"/>');" class="btn btn-default btn-sm loffset5">
-		<i class="fa fa-plus"></i>&nbsp;<fmt:message key="label.authoring.basic.add.learning.object" /> </a>
+	<button onClick="showResourceItem('<html:rewrite page="/authoring/newItemInit.do?sessionMapID=${formBean.sessionMapID}&itemType=1"/>');return false;" class="btn btn-default btn-sm btn-disable-on-submit">
+		<i class="fa fa-plus"></i>&nbsp;<fmt:message key="label.authoring.basic.add.url" /></button> 
+	<button onClick="showResourceItem('<html:rewrite page="/authoring/newItemInit.do?sessionMapID=${formBean.sessionMapID}&itemType=2"/>');return false;"  class="btn btn-default btn-sm loffset5 btn-disable-on-submit">
+		<i class="fa fa-plus"></i>&nbsp;<fmt:message key="label.authoring.basic.add.file" /></button>
+	<button onClick="showResourceItem('<html:rewrite page="/authoring/newItemInit.do?sessionMapID=${formBean.sessionMapID}&itemType=3"/>');return false;" class="btn btn-default btn-sm loffset5 btn-disable-on-submit">
+		<i class="fa fa-plus"></i>&nbsp;<fmt:message key="label.authoring.basic.add.website" /></button>
+	<button onClick="showResourceItem('<html:rewrite page="/authoring/newItemInit.do?sessionMapID=${formBean.sessionMapID}&itemType=4"/>');return false;" class="btn btn-default btn-sm loffset5 btn-disable-on-submit">
+		<i class="fa fa-plus"></i>&nbsp;<fmt:message key="label.authoring.basic.add.learning.object" /> </button>
 </div>
 
 <div id="resourceInputArea" name="resourceInputArea" class="voffset10"></div>
\ No newline at end of file
Index: lams_tool_larsrc/web/pages/authoring/parts/addfile.jsp
===================================================================
RCS file: /usr/local/cvsroot/lams_tool_larsrc/web/pages/authoring/parts/addfile.jsp,v
diff -u -r1.21.2.8 -r1.21.2.9
--- lams_tool_larsrc/web/pages/authoring/parts/addfile.jsp	1 Mar 2017 00:29:01 -0000	1.21.2.8
+++ lams_tool_larsrc/web/pages/authoring/parts/addfile.jsp	6 Mar 2017 11:21:54 -0000	1.21.2.9
@@ -99,10 +99,10 @@
 			<div><br/></div>
 			<div><br/></div>
 			<div class="voffset5 pull-right">
-			    <a href="javascript:;" onclick="hideResourceItem()" class="btn btn-default btn-sm">
-					<fmt:message key="label.cancel" /> </a>
-				<a href="#nogo" onclick="submitResourceItem()" class="btn btn-default btn-sm">
-					<i class="fa fa-plus"></i>&nbsp;<fmt:message key="label.authoring.basic.add.file" /> </a>
+			    <button onclick="hideResourceItem(); return false;" class="btn btn-default btn-sm btn-disable-on-submit">
+					<fmt:message key="label.cancel" /> </button>
+				<button onclick="submitResourceItem(); return false;" class="btn btn-default btn-sm btn-disable-on-submit">
+					<i class="fa fa-plus"></i>&nbsp;<fmt:message key="label.authoring.basic.add.file" /> </button>
 			    
 			</div>
 						
Index: lams_tool_larsrc/web/pages/authoring/parts/addlearningobject.jsp
===================================================================
RCS file: /usr/local/cvsroot/lams_tool_larsrc/web/pages/authoring/parts/addlearningobject.jsp,v
diff -u -r1.18.2.8 -r1.18.2.9
--- lams_tool_larsrc/web/pages/authoring/parts/addlearningobject.jsp	1 Mar 2017 00:29:01 -0000	1.18.2.8
+++ lams_tool_larsrc/web/pages/authoring/parts/addlearningobject.jsp	6 Mar 2017 11:21:54 -0000	1.18.2.9
@@ -100,10 +100,10 @@
 		    <div><br/></div>
 			<div><br/></div>
 			<div class="voffset5 pull-right">
-			    <a href="javascript:;" onclick="hideResourceItem()"	class="btn btn-default btn-sm">
-					<fmt:message key="label.cancel" /> </a>
-				<a href="#nogo" onclick="submitResourceItem()" class="btn btn-default btn-sm">
-					<i class="fa fa-plus"></i>&nbsp;<fmt:message key="label.authoring.basic.add.learning.object" /> </a>
+			    <button onclick="hideResourceItem(); return false;" class="btn btn-default btn-sm btn-disable-on-submit">
+					<fmt:message key="label.cancel" /> </button>
+				<button onclick="submitResourceItem(); return false;" class="btn btn-default btn-sm btn-disable-on-submit">
+					<i class="fa fa-plus"></i>&nbsp;<fmt:message key="label.authoring.basic.add.learning.object" /> </button>
 			</div>
 			
 			</div>
Index: lams_tool_larsrc/web/pages/authoring/parts/addurl.jsp
===================================================================
RCS file: /usr/local/cvsroot/lams_tool_larsrc/web/pages/authoring/parts/addurl.jsp,v
diff -u -r1.24.2.9 -r1.24.2.10
--- lams_tool_larsrc/web/pages/authoring/parts/addurl.jsp	23 Jan 2017 04:50:08 -0000	1.24.2.9
+++ lams_tool_larsrc/web/pages/authoring/parts/addurl.jsp	6 Mar 2017 11:21:54 -0000	1.24.2.10
@@ -70,10 +70,10 @@
             <div><br/></div>
 			<div><br/></div>
 			<div class="voffset5 pull-right">
-			    <a href="javascript:;" onclick="hideResourceItem()" class="btn btn-default btn-sm">
-					<fmt:message key="label.cancel" /> </a>
-				<a href="#nogo" onclick="submitResourceItem()" class="btn btn-default btn-sm">
-					<i class="fa fa-plus"></i>&nbsp;<fmt:message key="label.authoring.basic.add.url" /> </a>
+			    <button onclick="hideResourceItem(); return false;" class="btn btn-default btn-sm btn-disable-on-submit">
+					<fmt:message key="label.cancel" /> </button>
+				<button onclick="submitResourceItem(); return false;" class="btn btn-default btn-sm btn-disable-on-submit">
+					<i class="fa fa-plus"></i>&nbsp;<fmt:message key="label.authoring.basic.add.url" /> </button>
 				
 			</div>
 			
Index: lams_tool_larsrc/web/pages/authoring/parts/addwebsite.jsp
===================================================================
RCS file: /usr/local/cvsroot/lams_tool_larsrc/web/pages/authoring/parts/addwebsite.jsp,v
diff -u -r1.18.2.8 -r1.18.2.9
--- lams_tool_larsrc/web/pages/authoring/parts/addwebsite.jsp	1 Mar 2017 00:29:02 -0000	1.18.2.8
+++ lams_tool_larsrc/web/pages/authoring/parts/addwebsite.jsp	6 Mar 2017 11:21:54 -0000	1.18.2.9
@@ -101,10 +101,10 @@
 			<div><br/></div>
 			<div><br/></div>
 			<div class="voffset5 pull-right">
-			    <a href="javascript:;" onclick="hideResourceItem()" class="btn btn-default btn-sm">
+			    <button onclick="hideResourceItem(); return false;" class="btn btn-default btn-sm btn-disable-on-submit">
 					<fmt:message key="label.cancel" /> </a>
-				<a href="#nogo" onclick="submitResourceItem()" class="btn btn-default btn-sm">
-					<i class="fa fa-plus"></i>&nbsp;<fmt:message key="label.authoring.basic.add.website" /> </a>
+				<button onclick="submitResourceItem(); return false;" class="btn btn-default btn-sm btn-disable-on-submit">
+					<i class="fa fa-plus"></i>&nbsp;<fmt:message key="label.authoring.basic.add.website" /> </button>
 			</div>
 		<br />
 
Index: lams_tool_larsrc/web/pages/authoring/parts/instructions.jsp
===================================================================
RCS file: /usr/local/cvsroot/lams_tool_larsrc/web/pages/authoring/parts/instructions.jsp,v
diff -u -r1.16.2.3 -r1.16.2.4
--- lams_tool_larsrc/web/pages/authoring/parts/instructions.jsp	1 Mar 2017 00:29:02 -0000	1.16.2.3
+++ lams_tool_larsrc/web/pages/authoring/parts/instructions.jsp	6 Mar 2017 11:21:54 -0000	1.16.2.4
@@ -38,7 +38,7 @@
 		
 		<lams:WaitingSpinner id="instructionArea_Busy"/>
 		
-		<a href="#nogo" onclick="javascript:addInstruction();" class="btn btn-default btn-sm pull-right">
+		<button onclick="addInstruction(); return false;" class="btn btn-default btn-sm btn-disable-on-submit pull-right">
 			<i class="fa fa-plus"></i>&nbsp;<fmt:message key="label.authoring.basic.resource.add.instruction" /> 
 		</a>