JavaScript 获取GET中的值

 function GetQueryString(name)
{
var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)");
var r = window.location.search.substr(1).match(reg);
if (r!=null)return unescape(r[2]);return null;
}

//将url作为参数传入
var strUrl='http://localhost/phone/phone.php?UserEvent=SignIn&EnterpriseID=0000011&UserName=1004';
alert (GetQueryString(str,'UserEvent'));

function GetQueryString(url,name)
{
var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)");
var arr=url.split("?");
//alert(arr.length);
//alert(arr[1]);
var r= arr[1].match(reg);
if (r!=null)return unescape(r[2]);return null;
}