// These functions were originally written by Scott Andrew (scottandrew.com)
// They were modified by Peter-Paul Koch (quirksmode.org)
function setCookie(name,value,days)
{
	if (days)
	{
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else
		var 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 clearCookie(name)
{
	setCookie(name,"",-1);
}