var imgname=new Array();
  var img = new Array();
  imgname[0]="images/Subscribe.jpg";
  imgname[1]="images/Subscribe2.jpg";
  for (i=0;i<=imgname.length-1;i++)
  {
      img[i] = new Image();
      img[i].src = imgname[i];
  }

function isEmail(Email)
{   
  	var reg = /^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/;
	return reg.test(Email);
}   
  
function $(id)
{
	return document.getElementById(id);	
}

function CheckEmail(lang)
{
	lang = 2;
	var message = new Array();
	
	message[2] = Array(
			'The success of subscription services!',
			'The success of subscription services.',
			'Please enter E-mail!',
			'E-Mail format is not correct!',
			'Please repeat the subscription service!'
			);
		
	var Email = $('uEmail').value;
	if(isEmail(Email))
	{
		var options = {
			method:'GET',
			onLoading:function()
			{
				$('subEmail').disabled = true;
				$('subImg').src = imgname[1];	
			},
			onSuccess:function(x)
			{
				if(x.responseText == 'OK')
				{
					alert(message[lang][0]);	
				}else if(x.responseText == 'CF')
				{
					alert(message[lang][4]);	
				}else
				{
					alert(message[lang][1]);	
				}
				$('subEmail').disabled = false;
				$('subImg').src = imgname[0];
			}
		}
		var url = 'registration_email.php?email='+Email+'&lang='+lang;
		ajaxRequest(url,options);
	}
	
	else if(Email == '')
	{
		alert(message[lang][2]);	
	}
	else
	{
		alert(message[lang][3]);	
	}
}

function login_check(lang)
{
	lang = 2;
	var user = $('user').value;
	var pass = $('pass').value;
	var msg = new Array();
	msg[1] = Array(

				   );
	msg[2] = Array(
			'Please enter E-mail!',
			'Sorry: E-Mail format is not correct!',
			'Please enter Password!'
					);
	if(user == '')
	{
		alert(msg[lang][0]);
		return false;
	}else if(!isEmail(user))
	{
		alert(msg[lang][1]);	
		return false;
	}else if(pass == '')
	{
		alert(msg[lang][2]);
		return false;
	}else
	{
		$('myform').submit();
	}
}