jquery - Check link variable with JavaScript -

take example, page follows:

http://www.example.com/page.asp?page=about

with javascript, how can check if window's location contains ?page=about?

this code have far, can't seem work.

$(document).ready(function(){ if ($(window.location:contains('?page=about')").length !== 0)  { alert("currently on page"); } else { } });

please :)

thanks

use .indexof() instead of contains

if ( window.location.href.indexof('?page=about') > -1)

window.location contains location object .. href attribute holds url

EXIT