function getCookie(c_name)
{
	if (document.cookie.length>0)
	{
		c_start=document.cookie.indexOf(c_name + "=");
		
		if (c_start!=-1)
		{ 
			c_start=c_start + c_name.length+1; 
			c_end=document.cookie.indexOf(";",c_start);
			
			if (c_end==-1) c_end=document.cookie.length;
				return unescape(document.cookie.substring(c_start,c_end));
		} 
	}
	
	return "";
}

function setCookie(c_name, value, expiredays)
{
	var exdate = new Date();
	exdate.setDate(exdate.getDate() + expiredays);
	
	document.cookie = c_name + "=" + escape(value) +
		((expiredays==null) ? "" : ";expires=" + exdate.toGMTString());
}

function checkCookie(cookieName)
{
	var played = getCookie(cookieName);
	var retVal = false;
	
	if (played!=null && played!="")
	{
		retVal = true;
	}
	
	return retVal;
}