var xmlHttp
var div
function checkAvailability(url,target_div){
div = target_div;
document.getElementById(div).innerHTML = "";
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null){
alert ("Browser does not support HTTP Request")
return
}
url = url=url+"?username="+document.pass.checkusername.value+"&email="+document.pass.confirmEmail.value
xmlHttp.onreadystatechange=stateChanged
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}
function stateChanged(){
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){
document.getElementById(div).innerHTML=xmlHttp.responseText
}
}
function GetXmlHttpObject(){
var objXMLHttp=null
if (window.XMLHttpRequest){
objXMLHttp=new XMLHttpRequest()
}else if (window.ActiveXObject){
objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
}
return objXMLHttp
}