Change url query string value using jQuery [duplicate]

Question

I have an example URL like:

http://domain.com/Documents/?page=1&name=Dave&date=2011-01-01

The query string contains the current page number and two additional filters (name and date).

Using the following URL parser: https://github.com/allmarkedup/purl I am able to access certain parts of the URL such as just the page number.

I'm trying to create a way for a user to be able to type a number into a textbox and then load that page number whilst keeping all the other query strings intact.

$(document).ready(function () {          $('.pageNum').live('keyup', function (e) {             e.preventDefault();             if (e.which == 13) {                  var currentUrl = window.location.href;                  var parsedUrl = $.url(currentUrl);                  var currentPageNum = parsedUrl.param('page');                  var newPageNum = $(this).val();                  var newUrl = //                  window.location.href = newUrl;              }         });      }); 

So when a user hits return on the pageNum textbox, it will get the current page url, parse it, then find out the current page number and then I need a way to replace the value of the page number with the new value in the textbox to create a new url, and then finally refresh the page using this new url.

Is it possible to change the param value and then add it back in?

Note: The additional parameters could be anything, so I can't manually add them onto the pathname with the new page number!

Answer 1

If you only need to modify the page num you can replace it:

var newUrl = location.href.replace("page="+currentPageNum, "page="+newPageNum);