var xmlHttp
function rollover(minx_geo,miny_geo,maxx_geo,maxy_geo,mapW,mapH,selelem,grpstring)
{
//alert(minx_geo+","+miny_geo+","+maxx_geo+","+maxy_geo+","+mapW+","+mapH);
//alert(grpstring);
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
{
alert ("Browser does not support HTTP Request")
return
} 
var url="gethint.php"
url=url+"?minx_geo="+minx_geo+"&miny_geo="+miny_geo+"&maxx_geo="+maxx_geo+"&maxy_geo="+maxy_geo+"&mapW="+mapW+"&mapH="+mapH+"&selelem="+selelem+"&grpstring="+grpstring
url=url+"&sid="+Math.random()
xmlHttp.onreadystatechange=stateChanged 
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
}
function showHint(str)
{
if (str.length==0)
{ 
document.getElementById("txtHint").innerHTML=""
return
}
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
{
alert ("Browser does not support HTTP Request")
return
} 
var url="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 || xmlHttp.readyState=="complete")
{ 
//document.getElementById("scaleform").rollover.value=xmlHttp.responseText 
var el = document.getElementById('txtHint');
el.innerHTML = xmlHttp.responseText; 
//alert(el.innerHTML);
    evalInnerJS(el);
} 
} 

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