// cookie handling


if (!cookie) { function cookie () {}; }

cookie.prototype.setCookie = function(name,value,days) {
	if (days && days != 'session') {
		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=/";
}

cookie.prototype.getCookie = function (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;
}

cookie.prototype.eraseCookie = function(name) {
	cookie.setCookie(name,"",-1);
}

var cookie = new cookie();