Changed stop() to dispose() on crash, fixed web key triggers

html/webapp/index.html

@@ -13,6 +13,8 @@
               <script type="text/javascript" src="html/html.nocache.js"></script>
        </body>
        <script>
+              var keys = [27, 38, 37, 39, 40, 17, 9];
+       
               function handleMouseDown(evt) {
                 evt.preventDefault();
                 evt.stopPropagation();
@@ -28,8 +30,8 @@
               
               
               function preventUseOfDefaultKeys(event) {
-          		 if (event.keyCode == 32 || event.keyCode == 27 || event.keyCode == 38 || event.keyCode == 37 || event.keyCode == 39 || event.keyCode == 40 || event.keyCode == 17){
-          	      event.preventDefault();
+          		 if (keys.indexOf(event.keyCode) != -1 || event.ctrlKey){
+          	       event.preventDefault();
            		 }
          	  }