Index: lams_central/web/WEB-INF/tags/AuthoringButton.tag
===================================================================
diff -u -r50d68fddcd33b33903cd4c0119f01080b9314b80 -r111bade25b2f36532bfe692b4292f56a5969094b
--- lams_central/web/WEB-INF/tags/AuthoringButton.tag	(.../AuthoringButton.tag)	(revision 50d68fddcd33b33903cd4c0119f01080b9314b80)
+++ lams_central/web/WEB-INF/tags/AuthoringButton.tag	(.../AuthoringButton.tag)	(revision 111bade25b2f36532bfe692b4292f56a5969094b)
@@ -66,7 +66,10 @@
         	if(confirm("<fmt:message key='${cancelConfirmMsgKey}'/>")){
 	        	location.href="<c:url value='${clearSessionActionUrl}?action=cancel&mode=learner'/>";
 	        	//just for depress alert window when call window.close()
-	        	window.opener = "authoring"
+	        	//only available for IE browser
+	        	var userAgent=navigator.userAgent;
+	        	if(userAgent.indexOf('MSIE') != -1)
+		        	window.opener = "authoring"
 	        	window.close();
 			}
         }  				
Index: lams_central/web/authoringConfirm.jsp
===================================================================
diff -u -rb5daecdbe5723e4f853a9b30225cb0e9ae13d4a6 -r111bade25b2f36532bfe692b4292f56a5969094b
--- lams_central/web/authoringConfirm.jsp	(.../authoringConfirm.jsp)	(revision b5daecdbe5723e4f853a9b30225cb0e9ae13d4a6)
+++ lams_central/web/authoringConfirm.jsp	(.../authoringConfirm.jsp)	(revision 111bade25b2f36532bfe692b4292f56a5969094b)
@@ -17,8 +17,12 @@
 		</STYLE>
 		<script type="text/javascript">
 			  function closeWindow() {
-	        	window.opener = "authoring"
-	        	window.close();
+				//just for depress alert window when call window.close()
+	        	//only available for IE browser			  
+				var userAgent=navigator.userAgent;
+	        	if(userAgent.indexOf('MSIE') != -1)
+		        	window.opener = "authoring"
+		    	window.close();
    	          }  				
 		</script>
 	</head>
Index: lams_tool_larsrc/web/WEB-INF/tags/AuthoringButton.tag
===================================================================
diff -u -r50d68fddcd33b33903cd4c0119f01080b9314b80 -r111bade25b2f36532bfe692b4292f56a5969094b
--- lams_tool_larsrc/web/WEB-INF/tags/AuthoringButton.tag	(.../AuthoringButton.tag)	(revision 50d68fddcd33b33903cd4c0119f01080b9314b80)
+++ lams_tool_larsrc/web/WEB-INF/tags/AuthoringButton.tag	(.../AuthoringButton.tag)	(revision 111bade25b2f36532bfe692b4292f56a5969094b)
@@ -66,7 +66,10 @@
         	if(confirm("<fmt:message key='${cancelConfirmMsgKey}'/>")){
 	        	location.href="<c:url value='${clearSessionActionUrl}?action=cancel&mode=learner'/>";
 	        	//just for depress alert window when call window.close()
-	        	window.opener = "authoring"
+	        	//only available for IE browser
+	        	var userAgent=navigator.userAgent;
+	        	if(userAgent.indexOf('MSIE') != -1)
+		        	window.opener = "authoring"
 	        	window.close();
 			}
         }