function showHint(str)
{
	
if (str.length==0)
  { 
  document.getElementById("txtHint").innerHTML="";
  return;
  }
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  } 
var url="sub_plan.php?task=ajax&";
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
			xmlHttp=null;
		}
}


function ajaxFunction() {
	
var xmlHttp;

try {
  // Firefox, Opera 8.0+, Safari
 
 xmlHttp=new XMLHttpRequest();
 
 } catch (e){
  // Internet Explorer
  try {
   
   xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");  }
   
   
  catch (e)
    {
    try
      {
      xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
      }
	  
    catch (e)
      {
      alert("Your browser does not support AJAX!");
      return false;
      }
    }
  }
  }