1 ( function($) {

     2 	$.widget('wp.wpdialog', $.ui.dialog, {

     3 		open: function() {

     4 			// Add beforeOpen event.

     5 			if ( this.isOpen() || false === this._trigger('beforeOpen') ) {

     6 				return;

     7 			}

     8 

     9 			// Open the dialog.

    10 			this._super();

    11 			// WebKit leaves focus in the TinyMCE editor unless we shift focus.

    12 			this.element.focus();

    13 			this._trigger('refresh');

    14 		}

    15 	});

    16 

    17 	$.wp.wpdialog.prototype.options.closeOnEscape = false;

    18 

    19 })(jQuery);