/**
* 获取URL地址栏参数值
* name 参数名
* url [optional,default=当前URL]URL地址
* @return {String} 参数值
*/
getParameter: function(name, url) {
if (!url) url = window.location.href;
name = name.replace(/[\\[\\]]/g, "\\\\$&");
var regex = new RegExp("[?&]" + name + "(=([^&#]*)|&|#|$)"),
results = regex.exec(url);
if (!results) return null;
if (!results[2]) return '';
return decodeURIComponent(results[2].replace(/\\+/g, " "));
}