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// Copyright (C) 2007, Fredrik Kuivinen <frekui@gmail.com>

// 2007, Petr Baudis <pasky@suse.cz>

// 2008-2011, Jakub Narebski <jnareb@gmail.com>

/**

* @fileOverview Detect if JavaScript is enabled, and pass it to server-side

* @license GPLv2 or later

*/

/* ============================================================ */

/* Manipulating links */

/**

* used to check if link has 'js' query parameter already (at end),

* and other reasons to not add 'js=1' param at the end of link

* @constant

*/

var jsExceptionsRe = /[;?]js=[01](#.*)?$/;

/**

* Add '?js=1' or ';js=1' to the end of every link in the document

* that doesn't have 'js' query parameter set already.

*

* Links with 'js=1' lead to JavaScript version of given action, if it

* exists (currently there is only 'blame_incremental' for 'blame')

*

* To be used as `window.onload` handler

*

* @globals jsExceptionsRe

*/

function fixLinks() {

var allLinks = document.getElementsByTagName("a") || document.links;

for (var i = 0, len = allLinks.length; i < len; i++) {

var link = allLinks[i];

if (!jsExceptionsRe.test(link)) {

link.href = link.href.replace(/(#|$)/,

(link.href.indexOf('?') === -1 ? '?' : ';') + 'js=1$1');

}

}

}

/* end of javascript-detection.js */