function popupprint(page) {
		window.open(page,'WHpopupprint','width=512,height=1000,left=400,top=120,resizable=yes,copyhistory=no,fullscreen=no,toolbar=no,location=no,directories=no,menubar=no,status=no,scrollbars=yes');
	}
	
	function sendArticle()
	{
		var Expression;
		var email_from = $F('mailFriendUser');
		var email_to = $F('mailFriendField');
		var id_article = $F('idArticle');
		Expression =  /^[a-z0-9._-]+@[a-z0-9.-]{2,}[.][a-z]{2,3}$/
		if(Expression.test(email_from) == true)
		{
			if(Expression.test(email_to) == true)
			{
				new Ajax.Request(SITE_ROOT_PATH+'site/ajax/article.php',
								 {
									method : 'request',
									parameters : 'action=send_article&idArticle='+id_article+'&email_from=' + email_from+'&email_to='+email_to,
									onSuccess : function(xhr) {
				console.log(xhr.responseText);
										$('msgArticle').appear({duration: 0.3});
										$('mailFriendUser').clear();
										$('mailFriendField').clear();
										setTimeout('closeMsgArticle()',5000);
									}
								});
			}
			else
			{
				new Ajax.Request(SITE_ROOT_PATH+'site/ajax/article.php', {
						parameters : 'action=getMessage',
						onSuccess : function(xhr) {
							$('errorEmailTo').update(xhr.responseText);
							$('errorEmailTo').appear({duration: 0.3});
							setTimeout('hideErrorMailTo()',2000);
						}
				});
			}
		}
		else
		{
			new Ajax.Request(SITE_ROOT_PATH+'site/ajax/article.php', {
					parameters : 'action=getMessage',
					onSuccess : function(xhr) {
						$('errorEmailFrom').update(xhr.responseText);
						$('errorEmailFrom').appear({duration: 0.3});
						setTimeout('hideErrorMailFrom()',2000);
					}
			});
		}
	}
	
	function sendArticleLogged()
	{
		var Expression;
		var email_from = $F('mailFriendUser');
		var email_to = $F('mailFriendField');
		var id_article = $F('idArticle');
		Expression =  /^[a-z0-9._-]+@[a-z0-9.-]{2,}[.][a-z]{2,3}$/
		if(Expression.test(email_to) == true)
		{
			new Ajax.Request(SITE_ROOT_PATH+'site/ajax/article.php',
							 {
								method : 'request',
								parameters : 'action=send_article&idArticle='+id_article+'&email_from=' + email_from+'&email_to='+email_to,
								onSuccess : function(xhr) {
									$('msgArticle').appear({duration: 0.3});
									$('mailFriendUser').clear();
									$('mailFriendField').clear();
									setTimeout('closeMsgArticle()',5000);
								}
							});
		}
		else
		{
			new Ajax.Request(SITE_ROOT_PATH+'site/ajax/article.php', {
					parameters : 'action=getMessage',
					onSuccess : function(xhr) {
						$('errorEmailFrom').update(xhr.responseText);
						$('errorEmailFrom').appear({duration: 0.3});
						setTimeout('hideErrorMailFrom()',2000);
					}
			});
		}
	}
	
	
	function hideErrorMailTo()
	{
		Effect.DropOut($('errorEmailTo'),{duration: 0.5});
	}
	function hideErrorMailFrom()
	{
		Effect.DropOut($('errorEmailFrom'),{duration: 0.5});
	}
	function hideErrorMailFollow()
	{
		Effect.DropOut($('errorEmailToFollow'),{duration: 0.5});
	}
	function closeMsgArticle()
	{
		Effect.DropOut($('msgArticle'),{duration: 0.5});
	}