Data fetch another page Using Jquery on dropDown box

-Select a value in DroDownBox -Send a value Anothar page -prossesed value and display data

<select onchange="sltchange(this.value)">
  <option value="1">sem 1</option>
  <option value="2">sem 2</option>
  <option value="3">sem 3</option>
  <option value="4">sem 4</option>
</select>

<div class="ajaxresult"> </div>

   
 function sltchange()
 {
     var cid =document.getElementById('slt_course_id').value;
     var studid =document.getElementById('su_id').value;

     
     if(cid!="")
     {
        $('.ajaxresult').load('http://page_url/result_ajax.php?s_id='+studid+'&amp;sems='+cid);  
     }
     else
     {
       alert('Select test');
     }
 }