( function($) {

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

		open: function() {

			// Add beforeOpen event.

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

				return;

			}

			// Open the dialog.

			this._super();

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

			this.element.focus();

			this._trigger('refresh');

		}

	});

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

})(jQuery);