Updating existing URL querystring values with jQuery

Question

Let\'s say I have a url such as:

http://www.example.com/hello.png?w=100&h=100&bg=white

What I\'d like to do is update the values of

Answer 1

My URL is like this: http://localhost/dentistryindia/admin/hospital/add_procedure?hid=241&hpr_id=12

var reExp = /hpr_id=\\d+/;
var url = window.location.href;
url = url.toString(); 
var hrpid = $("#category :selected").val(); //new value to replace hpr_id
var reExp = new RegExp("[\\?&]" + 'hpr_id' + "=([^&#]*)"),
delimeter = reExp.exec(url)[0].charAt(0),
newUrl = url.replace(reExp, delimeter + 'hpr_id' + "=" + hrpid);
window.location.href = newUrl;

This is how it worked for me.