LIB / COOKIE

Cookie.js

var Cookie = {
	delete: function(cname) {
		Cookie.set(cname,null,-1000)
	},
	
	set: function(cname, cvalue, expireInDays) {
	    	var d = new Date();
    		d.setTime(d.getTime() + (expireInDays*24*60*60*1000));
    		var expires = "expires="+d.toUTCString();
	    	
		document.cookie = cname + "=" + cvalue + "; " + expires;
	},

	get: function(cname) {
	    var name = cname + "=";
	    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);
	        if (c.indexOf(name) == 0) return c.substring(name.length, c.length);
	    }
	    return false;
	},

	exists: function(cname) {
	    var cookie = Cookie.get(cname);
	    if (cookie != "") return true;
	    return false;
	}
}