function getAjax(url,onid) { 

	function GetXmlHttpObject(){

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

	xmlHttp=GetXmlHttpObject()
	
	if (xmlHttp==null){
		alert ("This browser do not support ajax, please update your browser!")
		return
	}
	
	xmlHttp.onreadystatechange=function() {
		
		if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete"){ 
			//alert(xmlHttp.readyState);
			document.getElementById(onid).innerHTML=xmlHttp.responseText;
		} 	
		
	}
	xmlHttp.open("GET",url,true)
	xmlHttp.send(null)
	
}