Index: lams_central/conf/language/lams/ApplicationResources.properties
===================================================================
diff -u -r6455f6e20efee02e4c447821693548724bb9cf8c -r4f6c07c270475353380998f303bb19e3caaa063f
--- lams_central/conf/language/lams/ApplicationResources.properties	(.../ApplicationResources.properties)	(revision 6455f6e20efee02e4c447821693548724bb9cf8c)
+++ lams_central/conf/language/lams/ApplicationResources.properties	(.../ApplicationResources.properties)	(revision 4f6c07c270475353380998f303bb19e3caaa063f)
@@ -524,7 +524,7 @@
 authoring.fla.import.part.dialog.title  =Import activities
 authoring.fla.run.sequences.folder  =<fmt:message key="label.tab.lesson.sequence.folder" />
 authoring.fla.arrange.confirm  =There are annotations on the canvas.\\n\ They will be not arranged automatically, you will have to adjust them manually later.\\n\ Do you want to continue?
-authoring.fla.clear.canvas.confirm  =Are you sure you want to remove all existing elements?
+authoring.fla.clear.canvas.confirm  =You have got unsaved changes. They will be lost. Do you want to continue?
 authoring.fla.branching.start.place.prompt  =Place the branching point
 authoring.fla.branching.end.place.prompt  =Place the converge point
 authoring.fla.annotation.region.place.prompt  =Click and hold to start drawing an annotation region
Index: lams_central/conf/language/lams/ApplicationResources_en_AU.properties
===================================================================
diff -u -r4a83c347cf1a9d2577082a823353d7da42b2e3a5 -r4f6c07c270475353380998f303bb19e3caaa063f
--- lams_central/conf/language/lams/ApplicationResources_en_AU.properties	(.../ApplicationResources_en_AU.properties)	(revision 4a83c347cf1a9d2577082a823353d7da42b2e3a5)
+++ lams_central/conf/language/lams/ApplicationResources_en_AU.properties	(.../ApplicationResources_en_AU.properties)	(revision 4f6c07c270475353380998f303bb19e3caaa063f)
@@ -519,7 +519,7 @@
 authoring.fla.import.part.dialog.title  =Import activities
 authoring.fla.run.sequences.folder  =<fmt:message key="label.tab.lesson.sequence.folder" />
 authoring.fla.arrange.confirm  =There are annotations on the canvas.\\n\ They will be not arranged automatically, you will have to adjust them manually later.\\n\ Do you want to continue?
-authoring.fla.clear.canvas.confirm  =Are you sure you want to remove all existing elements?
+authoring.fla.clear.canvas.confirm  =You have got unsaved changes. They will be lost. Do you want to continue?
 authoring.fla.branching.start.place.prompt  =Place the branching point
 authoring.fla.branching.end.place.prompt  =Place the converge point
 authoring.fla.annotation.region.place.prompt  =Click and hold to start drawing an annotation region
Index: lams_central/web/includes/javascript/authoring/authoringGeneral.js
===================================================================
diff -u -r2d51ee8a959ecba6a2f6ac2da80b7b9857bc50d0 -r4f6c07c270475353380998f303bb19e3caaa063f
--- lams_central/web/includes/javascript/authoring/authoringGeneral.js	(.../authoringGeneral.js)	(revision 2d51ee8a959ecba6a2f6ac2da80b7b9857bc50d0)
+++ lams_central/web/includes/javascript/authoring/authoringGeneral.js	(.../authoringGeneral.js)	(revision 4f6c07c270475353380998f303bb19e3caaa063f)
@@ -1492,11 +1492,7 @@
 	 */
 	newLearningDesign : function(force){
 		// force means that user should not be asked for confirmation.
-		if (!force && (layout.activities.length > 0
-					  || layout.regions.length > 0
-					  || layout.labels.length > 0
-					  || layout.floatingActivity)
-				&& !confirm(LABELS.CLEAR_CANVAS_CONFIRM)){
+		if (!force && layout.modified && !confirm(LABELS.CLEAR_CANVAS_CONFIRM)){
 			return;
 		}
 		
Index: lams_central/web/includes/javascript/authoring/authoringMenu.js
===================================================================
diff -u -r64e6623bc68b11257c7f5d71f3953154f80b6fde -r4f6c07c270475353380998f303bb19e3caaa063f
--- lams_central/web/includes/javascript/authoring/authoringMenu.js	(.../authoringMenu.js)	(revision 64e6623bc68b11257c7f5d71f3953154f80b6fde)
+++ lams_central/web/includes/javascript/authoring/authoringMenu.js	(.../authoringMenu.js)	(revision 4f6c07c270475353380998f303bb19e3caaa063f)
@@ -405,6 +405,9 @@
 	 * Opens a pop up for importing LD. Loads the imported LD to canvas.
 	 */
 	importLearningDesign : function(){
+		if (layout.modified && !confirm(LABELS.CLEAR_CANVAS_CONFIRM)) {
+			return;
+		}
 		var dialog = showDialog("dialogImportLearningDesign", {
 						'modal' : true,
 						'height' : 350,
@@ -482,6 +485,9 @@
 	 * Opens "Open sequence" dialog where an user can choose a Learning Design to load.
 	 */
 	openLearningDesign : function(){
+		if (layout.modified && !confirm(LABELS.CLEAR_CANVAS_CONFIRM)) {
+			return;
+		}
 		layout.ldStoreDialog.data('prepareForOpen')(LABELS.OPEN_DIALOG_TITLE, null,
 				'#ldStoreDialogOpenButton, #ldStoreDialogCancelButton', false);
 		layout.ldStoreDialog.modal('show');