function validate_form()
{
	clear_errors();
	var i=0;
	if(document.getElementById('full_name').value==false)
	{
		document.getElementById('full_name_error').style.display='block';
		i++;
	}
	if(document.getElementById('contact_telephone').value==false)
	{
		document.getElementById('contact_telephone_error').style.display='block';
		i++;
	}
	if(document.getElementById('contact_email').value==false)
	{
		document.getElementById('contact_email_error').style.display='block';
		i++;
	}
	if(echeck(document.getElementById('contact_email').value)==false)
	{
		document.getElementById('contact_email_error').style.display='block';
		i++;
	}
	/*if(document.getElementById('comments').value==false)
	{
		document.getElementById('comments_error').style.display='block';
		i++;
	}*/
	if(document.getElementById('secure_code').value==false)
	{
		document.getElementById('secure_code_error').style.display='block';
		i++;
	}
	
	
	if(i>0)
		return false;
	if(i==0)
	{
		verify_security();
		return false;
	}
}

function clear_errors()
{
	document.getElementById('full_name_error').style.display='none';
	document.getElementById('contact_telephone_error').style.display='none';
	document.getElementById('contact_email_error').style.display='none';
	document.getElementById('comments_error').style.display='none';
	document.getElementById('secure_code_error').style.display='none';
}

function echeck(str) 
{

	var at="@"
	var dot="."
	var lat=str.indexOf(at)
	var lstr=str.length
	var ldot=str.indexOf(dot)
	if (str.indexOf(at)==-1)
	   return false
	if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr)
	   return false
	if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr)
		return false
	if (str.indexOf(at,(lat+1))!=-1)
		return false
	if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot)
	    return false
	if (str.indexOf(dot,(lat+2))==-1)
	    return false
	if (str.indexOf(" ")!=-1)
	    return false
	 
	return true					
}


//---//security code relted
//---//ajax
 var xmlhttp2;

function verify_security()
{
	var code = document.getElementById('secure_code').value;
	xmlhttp2=GetXmlHttpObject();
	if (xmlhttp2==null)
	{
		alert ("Browser does not support HTTP Request");
		return;
	}
	var url="../new_includes/new_ajx_verify_security.php";
	url=url+"?code="+code;
	url=url+"&sid="+Math.random();
	xmlhttp2.onreadystatechange=stateChanged2;
	xmlhttp2.open("GET",url,true);
	xmlhttp2.send(null);
}

function stateChanged2()
{
	document.getElementById("secure_code_error").innerHTML="<font color='green'>Verifying...</font>";
	if (xmlhttp2.readyState==4)
	{
		var resp = xmlhttp2.responseText.split('@@@');
		if(resp[1]==0)
		{
			reload_secure_code();
			document.getElementById('secure_code_error').style.display='block';
			document.getElementById('secure_code_error').innerHTML="<font color='red'>Wrong Security Code</font>";
			return false;
		}
		if(resp[1]==1)
			document.getElementById('feedback_form').submit();
			
	}
}

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;
}

function reload_secure_code()
{
	xmlhttp1=GetXmlHttpObject();
	if (xmlhttp1==null)
	{
		alert ("Browser does not support HTTP Request");
		return;
	}
	var site_url=document.getElementById('site_url').value;
	var url="../new_includes/new_reload_secure_code.php";
	url=url+"?sid="+Math.random();
	xmlhttp1.onreadystatechange=stateChanged1;
	xmlhttp1.open("GET",url,true);
	xmlhttp1.send(null);
}

function stateChanged1()
{
	document.getElementById("secure_code_image").innerHTML="<font color='green'>Loading...</font>";
	if (xmlhttp1.readyState==4)
	{
		var resp = xmlhttp1.responseText.split('@@@');
		document.getElementById("secure_code_image").innerHTML=resp[1];
	}
}