fixed: improved unique ID generation

Author: fnagel

ui/jquery.ui.selectmenu.js

@@ -28,13 +28,13 @@ $.widget("ui.selectmenu", {
 
 	_create: function() {
 		var self = this, o = this.options;
-
-		// set a default id value, generate a new random one if not set by developer
-		var selectmenuId = ( this.element.attr( 'id' ) || 'ui-selectmenu-' + Math.random().toString( 16 ).slice( 2, 10 ) ).replace( /(:|\.)/g, '' )
+		
+		// make / set unique id
+		var selectmenuId = this.element.uniqueId().attr( "id" );
 
 		// quick array of button and menu id's
 		this.ids = [ selectmenuId, selectmenuId + '-button', selectmenuId + '-menu' ];
-
+		
 		// define safe mouseup for future toggling
 		this._safemouseup = true;
 		this.isOpen = false;