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

function setFavorite(id) {
	var i=0, found = false;
	var favs = readCookie("FAV");

	if (favs) {
		favs = favs.split("%2C");
		for(i=0;i<favs.length;i++){
			if( favs[i] == id ) found = true;
		}
	} else favs = new Array();

	if( !found ) favs[favs.length] = id;
	favs = favs.join("%2C");

	createCookie("FAV", favs);

	alert( "Favorite Saved" );

	return false;
}