js常用函数

var public_obj1 = window.location.href.split('?');
var public_obj2 = public_obj1[1].split('&');
var public_rid = 0;
for(var i=0;i<public_obj2.length;i++){
if(public_obj2[i].indexOf("rid=")>=0){
public_rid = public_obj2[i].substr(4);
}
}alert(public_rid);