function invalidEmail(lang,err,dest)
{
	var first=document.getElementById(dest);
	var myRequest = new XMLHttpRequest();

	myRequest.open("get","errormess.php?err=" + err +"&" + "lang=" + lang,false);
	//myRequest.open("get","newsletter/errormess.php?err=" + err,false);
	myRequest.send(null);
	first.innerHTML=myRequest.responseText;
}

function validEmail(lang,mail)
{
	var first=document.getElementById('nlResult');
	var myRequest = new XMLHttpRequest();

	myRequest.open("get","ispresent.php?lang=" + lang + "&mail=" + mail,false);
	myRequest.send(null);
	first.innerHTML=myRequest.responseText;
}
function mailCheck(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					
	}

function sleep(delay)
{
     var start = new Date().getTime();
     while (new Date().getTime() < start + delay);
}

function ValidateForm(lang){
	var emailID=document.frmSample.txtEmail;
	var privacy=document.frmSample.chkPrivacy;

	var el=document.getElementById("newsletter");
	el.style.height="90px";

	if(privacy.checked==false)
	{
		invalidEmail(lang,"privacy","nlResult");
		return false;

	}	
	if ((emailID.value==null)||(emailID.value=="")){
		invalidEmail(lang,"email","nlResult");
		emailID.focus();
		return false;
	}
	if (mailCheck(emailID.value)==false){
		invalidEmail(lang,"email","nlResult");
		emailID.value="";
		emailID.focus();
		return false;
	}
	validEmail(lang,emailID.value);
	emailID.value="";
		emailID.focus();
	return false;
 }