var xmlHttp

function showajax(url) 
{ 
	xmlHttp=GetXmlHttpObject()
	if (xmlHttp==null) 
	{
 		alert ("Browser does not support HTTP Request")
 		return
 	}	
	
	xmlHttp.onreadystatechange=stateChanged 
	xmlHttp.open("GET", url+'&bustcache='+new Date().getTime(),true)
	xmlHttp.send(null)
}

function stateChanged() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 	{ 
 		document.getElementById("txttable").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;
}