[JS cookie] Cookie handler

cookie.js

var cookie = {
		cookieDomain: function (){
			if(document.domain.length){
				var parts = document.domain.replace(/^(www\.)/, '').split('.');

				//is there a subdomain?
				while(parts.length > 2){
					//removing it from our array
					var subdomain = parts.shift();
				}

				//getting the remaining 2 elements
				var domain = parts.join('.');

				return ' domain=.' + domain.replace(/(^\.*)|(\.*$)/g, '');
			}
			return '';
		},

		set: function(cname, cvalue, exdays) {
			var d = new Date();
			d.setTime(d.getTime() + (parseInt(exdays)*24*60*60*1000));
			var expires = 'expires='+ d.toUTCString();
			document.cookie = cname+'='+cvalue +';path=/;' + expires + ';' + this.cookieDomain();
		},

		get: function(cname) {
			var name = cname + '=';
			var decodedCookie = decodeURIComponent(document.cookie);
			var ca = decodedCookie.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 '';
		}
	};