function getQueryString(name){
vat reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");
var r = window.location.serarch.substr(1).match(reg);
//decodeURI()函数可对encodeURI函数编码过的URI进行解码;
if (r != null) {
return decodeURI(r[2]);
return null;
function getQueryString(name){
vat reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)");
var r = window.location.serarch.substr(1).match(reg);
//decodeURI()函数可对encodeURI函数编码过的URI进行解码;
if (r != null) {
return decodeURI(r[2]);
return null;