function requester(){
	if(window.XMLHttpRequest){
		try{
			xh = new XMLHttpRequest();
		}catch(e){xh = false;}
	}else if(window.ActiveXObject){
		try{
			xh = new ActiveXObject("Msxml2.XMLHTTP");
		}catch(e){
			try{
				xh = new ActiveXObject("Microsoft.XMLHTTP");
			}catch(e){xh = false;}
		}
	}
	return xh;
}