function newsletter(lang) 
{
	
	var adres;
	var lang;
	

	this.check = function()
	{
		adres = document.getElementById('newsletter_text').value;
		var reg = new RegExp("@")
		if(reg.test(adres))
			execute();
		else
			msg('Niepoprawny adres email');
	}
	function execute()
	{
		
		$.ajax( 
		{
		   type: "POST",
		   url: "http://"+window.location.hostname+"/modules/newsletter/newsletter.php",
		   data: "mail="+adres+"&lang="+lang,
			success: function(sa) {
				document.getElementById('newsletter_text').value = '';
				msg(sa);
			   }
		}
		);
	}
}