//showhint1
var xmlhttp;
function showHint(str) {
	if (str.length==0)	{
		document.getElementById("txtHint").innerHTML="";
		return;
	}
	
	xmlhttp=GetXmlHttpObject();
	if (xmlhttp==null) {
		alert ("Your browser does not support XMLHTTP!");
		return;
	}
	
	var url="_tool/gethint.php";
	url=url+"?q="+str;
	url=url+"&sid="+Math.random();
	xmlhttp.onreadystatechange=stateChanged;
	xmlhttp.open("GET",url,true);
	xmlhttp.send(null);
}

function stateChanged() {
	if (xmlhttp.readyState==4) {
		document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
	}
}

//showhint2
var xmlhttp2;
function showHint2(str) {
	if (str.length==0)	{
		document.getElementById("txtHint2").innerHTML="";
		return;
	}
	
	xmlhttp2=GetXmlHttpObject();
	if (xmlhttp2==null) {
		alert ("Your browser does not support XMLHTTP!");
		return;
	}
	
	var url="_tool/gethint2.php";
	url=url+"?q="+str;
	url=url+"&sid="+Math.random();
	xmlhttp2.onreadystatechange=stateChanged2;
	xmlhttp2.open("GET",url,true);
	xmlhttp2.send(null);
}

function stateChanged2() {
	if (xmlhttp2.readyState==4) {
		document.getElementById("txtHint2").innerHTML=xmlhttp2.responseText;
	}
}




//general
function GetXmlHttpObject() {
	if (window.XMLHttpRequest) {
		// code for IE7+, Firefox, Chrome, Opera, Safari
		return new XMLHttpRequest();
	}
	
	if (window.ActiveXObject) {
		// code for IE6, IE5
		return new ActiveXObject("Microsoft.XMLHTTP");
	}
	
	return null;
}