JavaScript: Query String Map

gistfile1.js

var queryStringMap = (function(){
	'use strict';
	var obj = {},	
		params = location.search.replace(/^\?/,'').split('&'),
		i, param, key;
	for(i = params.length - 1; i >= 0; i--){
		param = params[i].split('='); 
		key = param[0];
		if(key){
			obj[key] = param[1];
		} 
	}
	return obj;
}());

/* Example Usage
	if(queryStringMap.testParam){
		console.log("testParam is in the query string, and its value is: ", queryStringMap.testParam);
	}
*/