var xmlHttp

function showHint(str){
	if (str.length == 0){ 
	  document.getElementById("txtHint").innerHTML = ''	  
	  return
	}
	
	//document.getElementById("txtHint").style.backgroundImage="url('images/loading2.gif') no-repeat"
	document.getElementById("txtHint").innerHTML = '<img src="images/ajax-loader.gif" width="43" height="11" />'	  
	xmlHttp = GetXmlHttpObject()
	if (xmlHttp == null){
	  alert ("Browser does not support HTTP Request")
	  return
	} 
	var url="suggest/gethint.php"
	url=url+"?q="+str
	url=url+"&sid="+Math.random()
	xmlHttp.onreadystatechange = stateChanged 
	xmlHttp.open("GET",url,true)
	//xmlHttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded; charset=windows-874");
	//xmlHttp.setRequestHeader("Content-Type","application/x-javascript; charset:windows-874"); 
	xmlHttp.send(null)
} 

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