function CheckUser(uname) {
	var obj = fetch_object('displayrs');
	var url = "ajax.php?do=checkuser&uname="+uname;
		xmlHttp.open("GET",url);
				xmlHttp.onreadystatechange = function(){
					if(xmlHttp.readyState == 1 || xmlHttp.readyState == 2){
						obj.style.display = '';
						fetch_object('nickname').disabled = true;
						obj.innerHTML = 'Checking...';
					}
					else if(xmlHttp.readyState == 4 && xmlHttp.status == 200){
						obj.style.display = '';
						var response = xmlHttp.responseText;
						var mesup = new Array();
						mesup = response.split('#:#');
						if(mesup[0] == 'Error') {
							obj.innerHTML = mesup[1];
							sentTimer = setTimeout("HideContent()",3000);
						} else {
							obj.innerHTML = response;
							sentTimer = setTimeout("fetch_object('displayrs').style.display='none'; fetch_object('nickname').disabled = false;",2000);
						}	
				}	
			}	
				xmlHttp.send(null);
}

function HideContent() {
	fetch_object('nickname').disabled = false;
	var obj = fetch_object('displayrs');
	fetch_object('nickname').value ='';
	fetch_object('nickname').focus();
	obj.style.display = 'none';
}