A JavaScript function parses URL parameters into JSON objects _javascript tips

Question: Write a JavaScript function parsequerystring, which is used to parse the URL parameter into an object.
Eg:var obj=parsequerystring (URL);

Create three types of objects:
One:

var person=new Object ();
Person.name= "Sun";
person.age=24;

Two:

var person=new Object ();
person["name"]= "Sun";
person["Age"]=24;

Three:
An object literal expression

var person={
Name: "Sun",
age:24
}

Ps:
1. In this example, it is more appropriate to use the second form to add elements to obj
2, Split ("&"), if the URL has only one parameter, there is no "&" time, also will not error, will return only array[0]

function parsequerystring (URL)
{
var obj={};
var keyvalue=[];
var key= "", value= ""; 
var parastring=url.substring (Url.indexof ("?") +1,url.length). Split ("&");
for (var i in parastring)
{
keyvalue=parastring[i].split ("=");
KEY=KEYVALUE[0];
VALUE=KEYVALUE[1];
Obj[key]=value; 
} 
return obj;
}