Added some code for window.close() on Chrome - only supported with user action on FF 2.0 and up

vif.js

@@ -98,6 +98,11 @@ JVIV = function() {
 					switch(event.keyCode) {
 						case 81: // q
 							loop.stop();
+							/* The following line enables window.close() in Chrome and < FF2.0
+							   FF above that require explicit user action to enable:
+							     about:config -> dom.allow_scripts_to_close_windows=true
+							*/
+							window.open('', '_self', ''); // enables window.close() in Chrome and FF1.5 to enable FF1.5
 							window.close();
 							break;
 						case 37: // left