JS gets the value of the Select tag and is compatible with IE and Firefox

  This article mainly introduces JS to obtain the value of the select tag and compatible with IE and Firefox. Need friends can come to the reference, I hope to help you.

JSP code: Code as follows: <form id= "Search" >  <select id= "jobselect" style= "width:200px;" Name= "Jobselect" >   <s:if test= ' jobselect = null | | Jobselect = "" ' >    <option selected= "selected" value= "-1" >--according to category--</option>   &LT;/S: if>   <s:else>    <option value= "-1" >--selected by category--</option>   </s:else>   <s:iterator value= "Jobcat" status= "S" >    <s:if test= "jobselect = Catkey" >     &L T;option value= "<s:property value=" Catkey "/>" selected= "selected" >      <s:property value= "Catcnname"/>     </option>    </s:if>    <s:else>     < Option value= "<s:property value=" Catkey "/>" >      <s:property value= "Catcnname"/>     </option>    </s:else>   </s:iterator>  </select> <br/ >  <selecT id= "Areaselect" style= "width:200px" name= "Areaselect" >   <s:if test= ' areaselect = null | | Areaselect = "" ' >    <option selected= "selected" value= "-1" >--by region--</option>   &LT;/S :if>   <s:else>    <option value= "-1" >--Filter by Region--</option>   </s:else> & nbsp <s:iterator value= "Workareacat" status= "S" >    <s:if test= "areaselect = Areacat" >     & Lt;option value= "<s:property value=" Areacat "/>" selected= "selected" >      <s:property Value= "Catcnname"/>     </option>    </s:if>    <s:else>   & nbsp <option value= "<s:property value=" Areacat "/>" >      <s:property value= "Catcnname"/>     </option>    </s:else>   </s:iterator>  </select>  < Input class= "Send2" type= "button" onclick= "Validate () returN false "value=" query "/>  <span style=" color:red; "mce_style=" color:red "id=" Requiredparam > </form>   JS code:   Code as follows: <mce:script type= "Text/javascript" ><!-- validate = function ( {  var jobselect   var areaselect   var search = document.getElementById ("search");   for (Var i=0; i<search.jobselect.length;i++) {   if (search.jobselect[i].selected) {    Jobselect = Search.jobselect[i].value;   &NBSP}  }   for (Var i=0;i<search.areaselect.length;i++) {   if (search.areaselect[i). Selected) {    Areaselect = Search.areaselect[i].value    }  }   if (Jobselect = 1 && Amp Areaselect = = 1) {   document.getelementbyid (' Requiredparam '). InnerHTML = ' Please set filter criteria after query ';    return ;  }   var param = {         target: ' ... /index/jobframe.action ',          method: 'Post '          form  : ' Search ',          div   &nbsp: ' Box '     &NBSP}      var as = new Ajaxsender (param);      as.send ()  }//--></mce:script