function isEmail(s)
{
	if (s == '')
		return true;
	if(s.indexOf("@")>-1)
	{
		var name = s.split("@")[0];
		var serv = s.split("@")[1];
		if(name != "" && serv != "" && serv.indexOf(".")>0)
		{
			var xxx = serv.split(".");
			for(var i = 0; i < xxx.length; i++)
			{
				if(xxx[i].length < 2) 
					return false;
			}
			return true;
		}
		else 
			return false;
	}
	else 
		return false;
}
function menuOver(c)
{
	c.bgColor = "#f5f8ff";
	c.style.borderColor="#e8ebf2";
	c.style.cursor = "hand";
	return (true);
}
function menuOut(c)
{
	c.bgColor = "#e8ebf2";
	c.style.borderColor="#f5f8ff";
	c.style.cursor = "default";
	return (true);
}
function set_lang(lang)
{
	document.forms["lang"].elements["lang_lang"].value = lang;
	document.forms["lang"].submit();
}
function newwin(nlink) { 
	window.open(nlink,"show13","width=600,height=500,top=50,align=center,channelmode=no,toolbar=no,location=no,scrollbars=yes,resizable=yes");
}
function rate(id, mark)
{
	document.forms["catrate"].elements["catalog_id"].value = id;
	document.forms["catrate"].elements["rating_value"].value = mark;
	document.forms["catrate"].submit();
}