function readCookie(name) {
	var ca = document.cookie.split(';');
	var nameEQ = name + "=";
	for (var i = 0; i < ca.length; i++) {
		var c = ca[i];
		while (c.charAt(0) == ' ') c = c.substring(1, c.length); //delete spaces
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
	}
	return null;
}

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

function createWgCookies(weedType, nodeId) {
	createCookie("weedType", weedType, 1);
	createCookie("nodeId", nodeId, 1);
}

//  Nice jQuery extension to retrieve URL Parameters & their values 

// Get object of URL parameters
// var allVars = $.getUrlVars();

// Getting URL var by its nam
// var byName = $.getUrlVar('name');

$.extend({
	getUrlVars: function () {
		var vars = [], hash;
		var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
		for (var i = 0; i < hashes.length; i++) {
			hash = hashes[i].split('=');
			vars.push(hash[0]);
			vars[hash[0]] = hash[1];
		}
		return vars;
	},
	getUrlVar: function (name) {
		return $.getUrlVars()[name];
	}
});