function set_cookie(name, value, expires, path, domain, secure)
{
	document.cookie = name + "=" + escape(value) +
	((expires) ? "; expires=" + expires : "") +
	((path) ? "; path=" + path : "") +
	((domain) ? "; domain=" + domain : "") +
	((secure) ? "; secure" : "");
}

function get_cookie(name)
{
	var cookie = " " + document.cookie;
	var search = " " + name + "=";
	var setStr = null;
	var offset = 0;
	var end = 0;
	if (cookie.length > 0)
	{
		offset = cookie.indexOf(search);
		if (offset != -1)
		{
			offset += search.length;
			end = cookie.indexOf(";", offset)
			if (end == -1)
			{
				end = cookie.length;
			}
			setStr = unescape(cookie.substring(offset, end));
		}
	}
	return(setStr);
}

function show_popup()
{
	$('body').append('<div id="fade"></div>');	
	$('#popup').css({'margin-top':-(($('#popup').height() + 80) / 2), 'margin-left':-(($('#popup').width() + 80) / 2)}).fadeIn();
	$('#fade').css({'filter':'alpha(opacity=80)'}).fadeIn();
	set_cookie("popup", "1");
}

jQuery(document).ready(function()
{
	if(!get_cookie("popup"))
		setTimeout(show_popup, '57000');
	$('#popup a.close').click(function()
	{
		$('#fade , #popup').fadeOut();
		return false;
	});
});