function getReq(targetId)
{

  /* Compilation conditionnelle d'IE */
  /*@cc_on
  @if (@_jscript_version >= 5)
     try
     {
        xhr = new ActiveXObject("Msxml2.XMLHTTP");
     }
     catch (e)
     {
        try
        {
           xhr = new ActiveXObject("Microsoft.XMLHTTP");
        }
        catch (E)
        {
           xhr = false;
        }
     }
  @else
     xhr = false;
  @end @*/

  /* on essaie de créer l'objet si ce n'est pas déjà fait */
  /*if (!xhr && typeof XMLHttpRequest != 'undefined')
  {
     try
     {
        xhr = new XMLHttpRequest();
     }
     catch (e)
     {
        xhr = false;
     }
  }
  
  return xhr;*/
  var req = null;
		if (typeof XMLHttpRequest != "undefined")
			req = new XMLHttpRequest();
		if (!req && typeof ActiveXObject != "undefined")
		{
			try
			{
				req=new ActiveXObject("Msxml2.XMLHTTP");
			}
			catch (e)
			{
				try
				{
					req=new ActiveXObject("Microsoft.XMLHTTP");
				}
				catch (e2)
				{
					try {
						req=new ActiveXObject("Msxml2.XMLHTTP.4.0");
					}
					catch (e3)
					{
						req=null;
					}
				}
			}
		}
		if(!req && window.createRequest)
			req = window.createRequest();
		
		if (!req) this.DebugMessage("Request Object Instantiation failed.");
			
		return req;
}

function createHTTPObject() {
   var objHTTP = null;
   
   if (typeof XMLHttpRequest != 'undefined') {
      try {
         // Native XML support (Firefox, etc...)
         objHTTP = new XMLHttpRequest();
      }
      catch (e1) {}
   }
   else {
       try {
         // Internet Explorer support (new library)
         objHTTP = new ActiveXObject("Msxml2.XMLHTTP");
      }
      catch (e2) {
         try {
            // Internet Explorer support (old library)
              objHTTP = new ActiveXObject("Microsoft.XMLHTTP");
           }
         catch (e3) {}
        }
   }

   return objHTTP;
}