// JavaScript Document
function upAjaxPost(url,params,div)
{
if (window.XMLHttpRequest)
  {// code for IE7+, Firefox, Chrome, Opera, Safari
  xmlhttp=new XMLHttpRequest();
  }
else
  {// code for IE6, IE5
  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
 }
     xmlhttp.onreadystatechange=function()
     {//ouverture de la fonction
     if (xmlhttp.readyState==4){
		 
		if(xmlhttp.status==200)
        {
         document.getElementById(div).innerHTML=xmlhttp.responseText;
        }else{
		alert('Virifier votre connection !');	
	    }
	  }
     }//fermeture de la fonction
xmlhttp.open("POST",url,true);
xmlhttp.setRequestHeader("Content-type","application/x-www-form-urlencoded");
xmlhttp.send(params);
}