var xmlHttp

function WaitOn() {
	document.body.style.cursor="wait";
}

function WaitOff() {
	document.body.style.cursor="auto";
}

function showHint(str) { 
	if (str.length > 0) { 
		var url="gethint.php?sid=" + Math.random() + "&q=" + str
		xmlHttp=GetXmlHttpObject(stateChanged)
		xmlHttp.open("GET", url , true)
		xmlHttp.send(null)
	}  else { 
		document.getElementById("txtHint").innerHTML=""
	} 
} 

function GetXmlHttpObject(handler) { 
	var objXmlHttp=null

	if (navigator.userAgent.indexOf("Opera")>=0) {
		alert("This example doesn't work in Opera") 
		return 
	}
	if (navigator.userAgent.indexOf("MSIE")>=0)	{ 
		var strName="Msxml2.XMLHTTP"
		if (navigator.appVersion.indexOf("MSIE 5.5")>=0) {
			strName="Microsoft.XMLHTTP"
		} 
		try	{ 
			objXmlHttp=new ActiveXObject(strName)
			objXmlHttp.onreadystatechange=handler 
			return objXmlHttp
		} catch(e)	{ 
			alert("Error. Scripting for ActiveX might be disabled") 
			return 
		} 
	} 
	if (navigator.userAgent.indexOf("Mozilla")>=0) {
		objXmlHttp=new XMLHttpRequest()
		objXmlHttp.onload=handler
		objXmlHttp.onerror=handler 
		return objXmlHttp
	}
}