var xmlHttp

function showCountries(Continent_ID, Country_ID)
{ 
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  } 
var url="/user/getcountries.asp";
url=url+"?Continent_ID="+ Continent_ID;
url=url+"&Country_ID="+ Country_ID;
url=url+"&sid="+Math.random();
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}

function stateChanged() 
  { 
    if (xmlHttp.readyState==4)
     { 
       document.getElementById("txtCountries").innerHTML=xmlHttp.responseText;
	 }
  }

function GetXmlHttpObject()
  {
    var xmlHttp=null;
    try
      {
        // Firefox, Opera 8.0+, Safari
        xmlHttp=new XMLHttpRequest();
	  }
	catch (e)
	  {
	    // Internet Explorer
		try
		  {
			xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
		  }
		catch (e)
		  {
			xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
		  }
	  }
	return xmlHttp;
}