var xmlHttp

function showUser(str)
{
	xmlHttp=GetXmlHttpObject()
	if (xmlHttp==null)
	{
		alert("Browser does not support HTTP request!")
		return
	}
	var url="getuser.php"
	url=url+"?q="+str
	url=url+"&sid="+Math.random()
	xmlHttp.onreadystatechange=stateChanged
	xmlHttp.open("Get", url, true)
	xmlHttp.send(null)
}

function getyear(str, sector_tbl)
{
	yxmlHttp=GetXmlHttpObject()
	if (xmlHttp==null)
	{
		alert("Browser does not support HTTP request!")
		return
	}
	var url="getyear.php"
	url=url+"?q="+str
	url=url+"&sector_tbl="+sector_tbl
	url=url+"&sid="+Math.random()
	xmlHttp.onreadystatechange=stateChanged
	xmlHttp.open("Get", url, true)
	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)
		{
		try
			//Internet Explorer
			{
			xmlHttp= new ActiveXObject("Msxml2.XMLHTTP");
			}
		catch (e)
			{
			xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
			}
		}
	return xmlHttp;
}