var xmlHttp

function showCustomer(str)
{ 
	xmlHttp=GetXmlHttpObject()
	if (xmlHttp==null)
	{
		alert ("Browser does not support HTTP Request")
		return
	} 
	var url="getcategory.php"
	url=url+"?q="+str
	xmlHttp.onreadystatechange=stateChanged 
	xmlHttp.open("POST",url,true)
	xmlHttp.send(null)
}


function stateChanged() 
{ 
	//alert(xmlHttp.readyState);
	if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
	{ 
		document.getElementById("txtHint").innerHTML=xmlHttp.responseText 
	} 
	else if (xmlHttp.readyState==1)
	{
		document.getElementById("txtHint").innerHTML="<img src='images/processing.gif' align='center'><br>Please wait while Processing" 
	}
} 

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