Dialog demos: safer selectors for the demo system workaround.

Author: scottgonzalez

demos/dialog/modal-confirmation.html

@@ -17,7 +17,7 @@
 	<script>
 	$(function() {
 		// a workaround for a flaw in the demo system (http://dev.jqueryui.com/ticket/4375), ignore!
-		$( "#dialog" ).dialog( "destroy" );
+		$( "#dialog:ui-dialog" ).dialog( "destroy" );
 
 		$( "#dialog-confirm" ).dialog({
 			resizable: false,

demos/dialog/modal-form.html

@@ -31,7 +31,7 @@
 	<script>
 	$(function() {
 		// a workaround for a flaw in the demo system (http://dev.jqueryui.com/ticket/4375), ignore!
-		$( "#dialog" ).dialog( "destroy" );
+		$( "#dialog:ui-dialog" ).dialog( "destroy" );
 
 		var name = $( "#name" ),
 			email = $( "#email" ),

demos/dialog/modal-message.html

@@ -18,7 +18,7 @@
 	<script>
 	$(function() {
 		// a workaround for a flaw in the demo system (http://dev.jqueryui.com/ticket/4375), ignore!
-		$( "#dialog" ).dialog( "destroy" );
+		$( "#dialog:ui-dialog" ).dialog( "destroy" );
 
 		$( "#dialog-message" ).dialog({
 			modal: true,

demos/dialog/modal.html

@@ -17,7 +17,7 @@
 	<script>
 	$(function() {
 		// a workaround for a flaw in the demo system (http://dev.jqueryui.com/ticket/4375), ignore!
-		$( "#dialog" ).dialog( "destroy" );
+		$( "#dialog:ui-dialog" ).dialog( "destroy" );
 
 		$( "#dialog-modal" ).dialog({
 			height: 140,