jsp显隐的处理

显隐的处理
//继电保护的时候显示设备类型
function changeEvaType(){
       if(document.getElementById("UNIT_ID").value!=1){
          jQuery("#RelayProtect").hide();
          vDisplayClassify_id2 = false;
       }else{
          document.getElementById("RelayProtect").style.display="";
          //清空值
          document.getElementsByName("CLASSIFY_ID")[0].value="";
          vDisplayClassify_id2 = true;
       }
}
<span id="RelayProtect">
<%Map DATA_STATE = new HashMap();
    DATA_STATE.put("DeviceType_For_DseStateAssess", "");
    request.setAttribute("CLASSIFY_ID",DATA_STATE);%>
   设备类别：<common:dict dict="DeviceType_For_DseStateAssess"     property="CLASSIFY_ID" name="CLASSIFY_ID" addEmptyItem=":--全部--"/>
</span>