function createCookie(name,value,days)
{
	var expires = "";
	if (days)
	{
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		expires = "; expires="+date.toGMTString();
	}
	else
	{
		expires = "";
	}
	document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name)
{
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++)
	{
		var c = ca[i];
		while (c.charAt(0) == ' ')
		{
			c = c.substring(1,c.length);
		}
		if (c.indexOf(nameEQ) === 0)
		{
			return c.substring(nameEQ.length,c.length);
		}
	}
	return null;
}

function eraseCookie(name)
{
	createCookie(name,"",-1);
}

function showContent(days)
{
	days = typeof(days) != 'undefined' ? days : 7;

	createCookie("homepageAd","skip",days);
	document.getElementById("homepageAd").style.display = "none";
	document.getElementById("page").style.display = "block";
}

function setTime(days)
{
	days = typeof(days) != 'undefined' ? days : 7;

	countdown = countdown - 1;
	
	if (countdown === 0)
	{
		showContent(days);
		return;
	}
	
	document.getElementById("countdown").innerHTML = countdown;	
	setTimeout(function(){setTime(days);}, 1000);
}