添加jquery下拉

<script src="${ctx }/ui/Platform/js/jquery-1.2.6.js"    type="text/javascript"></script>
<script type="text/javascript"   src="${ctx}/plugins/autocomplete/jquery.autocomplete.js"></script>
<link rel="stylesheet" type="text/css"  href="${ctx}/plugins/autocomplete/jquery.autocomplete.css" />

<script type="text/javascript">

  

   function advance(){
      if(event.keyCode==13){  //实现回车事件
         jQuery("#mainForm")[0].action="fc0002!advance.action";
     jQuery("#mainForm")[0].submit();
     }
      }
 </script>

企业名称：
         <input type="text" name="filter_psName" id="psName"
          value="${param['filter_psName']}" size="60"
          onkeyup="advance()" />

 

<script type="text/javascript">
           jQuery("#psName").autocomplete(${allPsName},
                 {
                 caption:"输入污染源名称，使用↑↓可以选择",
                 minChars: 0,
                 max:50
              }
            );
</script>