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;
}

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

function showHint(str,pagename,mpupageid,mainpath){ 
//alert(str);
//alert(pagename);
//alert(mpupageid);
//alert(mainpath);
	if (str.length==0)
	  { 
		  document.getElementById("mpudisplaybox").innerHTML="";
		  return;
	  }
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null)
	  {
		  alert ("Your browser does not support AJAX!");
		  return;
	  } 
	
	var url=mainpath+"commonmpu.php";
	url=url+"?id="+str;
	url=url+"&pagename="+pagename;
	url=url+"&mpupageid="+mpupageid;
	
	xmlHttp.onreadystatechange=stateChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);
}