var xmlHttp

function ajaxkeepalive(str)
{
	xmlHttp=GetXmlHttpObjectN()
	if (xmlHttp==null)
	{
		alert ("Browser does not support HTTP Request")
		return
	} 
	var url=page_to_request
	url=url+"?q="+str
	url=url+"&sid="+Math.random()
	xmlHttp.onreadystatechange=stateChangedN
	xmlHttp.open("GET",url,true)
	xmlHttp.send(null)
} 

function stateChangedN() 
{ 
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{ 
		document.getElementById(response_id).innerHTML=xmlHttp.responseText 
	} 
} 

function GetXmlHttpObjectN()
{ 
	var objXMLHttp=null
	if (window.XMLHttpRequest)
	{
		objXMLHttp=new XMLHttpRequest()
	}
	else if (window.ActiveXObject)
	{
		objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
	}
	return objXMLHttp
}