var xmlHttp

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;
}// JavaScript Document

//new function Get County
function getSubCategory(str)
{ 
document.getElementById("subcat").innerHTML='Loading ...'
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }
var url="getsubcategory.php"
url=url+"?check=subcat&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")
 { 
 //alert(xmlHttp.responseText )
 document.getElementById("subcat").innerHTML=xmlHttp.responseText 
 } 
}
}
//end

function checkCaptcha(str)
{ 
xmlHttp=GetXmlHttpObject()
if (xmlHttp==null)
 {
 alert ("Browser does not support HTTP Request")
 return
 }
var url="checkcaptcha.php"
url=url+"?check=captcha&q="+str
url=url+"&sid="+Math.random()
//alert(url)
xmlHttp.onreadystatechange=stateChanged 
xmlHttp.open("GET",url,true)
xmlHttp.send(null)
function stateChanged() 
{ 
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
 { 
 var value=xmlHttp.responseText;
// alert(value);
 if(value=="false")
 {
 document.getElementById("errorcaptcha").innerHTML='Wrong Verification Code!'
 return false
 }
  else if(value=="empty") 
 {
 	document.getElementById("errorcaptcha").innerHTML='Empty Verification Code!'
 return false
 }
 else 
 {
 	document.getElementById("frm_register").submit();
 }
//  
 } 
}
}


function chkTopicFrm()
{
frm=document.frm_topic;
if(frm.category.value=="")
{
alert("Please enter the category for topic.");
frm.category.focus();
return false;
}

if(frm.location.value=="")
{
alert("Please enter your location.");
frm.location.focus();
return false;
}

if(frm.topic_title.value=="")
{
alert("Please enter topic title.");
frm.topic_title.focus();
return false;
}

if(frm.contributor_name.value=="")
{
alert("Please enter your name !");
frm.contributor_name.focus();
return false;
}

if(frm.imgfile1.value=="" && frm.previmage1.value=="")
{
alert("Please enter the default image for this topic !");
frm.imgfile1.focus();
return false;
}

if(frm.caption_1.value=="")
{
alert("Please enter the caption for the default image for this topic !");
frm.caption_1.focus();
return false;
}
/*
checkCaptcha(frm.verif_box.value);
return false;	
*/
return true;
}