<script type="text/javascript">
  $("#cond_EPARCHY_CODE").selectmenu();
</script><style>
  .overflow { height: 200px; }
</style>
<script type="text/javascript">
  $("#cond_EPARCHY_CODE").selectmenu().selectmenu( "menuWidget" ).addClass( "overflow" );
</script>/*!
 * jQuery UI Selectmenu 1.11.2
 * http://jqueryui.com
 *
 * Copyright 2014 jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 *
 * http://api.jqueryui.com/selectmenu
 */
var selectmenu = $.widget( "ui.selectmenu", {
  ...
}3、从注释里看到该控件的官网地址,直接访问http://api.jqueryui.com/selectmenu原文:http://blog.csdn.net/ouyida3/article/details/44132115