<select id="accountStatus" editable="false" style="width:80px" >  
           <option value="all">all</option>  
           <option value="active">active</option>  
           <option value="inactive">inactive</option>  
        </select>      

获得text值
var accountStatus = $("#accountStatus option:selected").text();

获得option值
 var accountStatus  = $("#accountStatus").val();  ;