code: function getQueryString(url){
  	if(url.indexOf('%')!==-1)  url = decodeURIComponent(url);
  	return parse_info(url.substr(url.indexOf('?')+1,url.length-url.indexOf('?')-1));
  }
docs: /*	get url query string
  http://aaa.com?a=123&b=456&c=789
  return {a:123,b:456,c:789}