var xmlHttp

function show(str)
{
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
{
alert ("Browser does not support HTTP Request")
return
}
var url="process.php"
url=url+"?keyword="+str
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=stateChanged
xmlHttp.open("POST",url,true)
xmlHttp.setRequestHeader('Content-Type','text/html');
xmlHttp.send(null)
}

function stateChanged()
{
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
{
document.getElementById("displayResponse").innerHTML=xmlHttp.responseText
}
else
{
ShowLoadingMessage()
}
}
function ShowLoadingMessage()
{
document.getElementById('displayResponse').innerHTML = '<p align=center><img src=loading1.gif ></p>';
}
function GetXmlHttpObject()
{
var objXMLHttp=null
if (window.XMLHttpRequest)
{
objXMLHttp=new XMLHttpRequest()
}
else if (window.ActiveXObject)
{
objXMLHttp=new ActiveXObject("Microsoft.XMLHTTP")
}
return objXMLHttp
}