Injects links to better.php and logchecker.php into the main menu
Optional:
You can add link to whatimg.com just insert this after target.appendChild(better_item);
/* Insert whatimg link */
var lc_item = document.createElement('li');
lc_item.id = 'nav_logchecker';
lc_item.innerHTML = 'WhatIMG';
target.appendChild(lc_item);