The method of JavaScript implementation querystring getting get parameter

This article describes how to achieve querystring through JavaScript to obtain get parameters, specific implementation of the following, interested friends can refer to ha, I hope to help you copy code code as follows:


<div id= "page" >


<select name= "Select1" id= "Select-type" >


<option value= "0" > Please choose </option>


<option value= "1" > Enterprise </option>


<option value= "2" > Products </option>


</select>


</div>

Copy Code code as follows:

QueryString = {
Data: {},
Initial:function () {
var apairs, aTmp;
var querystring = new String (window.location.search);
QueryString = Querystring.substr (1, querystring.length);//remove "?"
Apairs = Querystring.split ("&");
for (var i = 0; i < apairs.length i++) {
ATmp = apairs[i].split ("=");
This.data[atmp[0]] = atmp[1];
}
},
Getvalue:function (key) {
return this.data[key];
}


$ (function () {
//init
querystring.initial ();

var type = Querystring.getvalue ("type");

if (typeof (type)!= "undefined") {
$ ("#select-type"). val (type);
}

$ ("#select-type"). Bind (' Change ', function () {
var row = $ (this). Find ("option:selected"). Val ()

//alert (row);
if (row = = 1)
Location.href = "? type=" + row;
if (row = = 2)
Location.href = "? type=" + row;
});
});