function URLParams() {
	
	this.getParam = function(name) {
		var params = this.getAllParams();
		return params[name];
	}
	
	// Read a page's GET URL variables and return them as an associative array.
	this.getAllParams = 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;
	}
}

var urlParams = new URLParams();