this code:

// This file is in the public domain.
// You may copy this file, alter it as you wish, and serve your modification 
// from your site.  

// load the aardvark code from karmatics.com
function aardvark_load ()
{
var path = "http://karmatics.com/aardvark/";
window.aardvark = {isBookmarklet: true, resourcePrefix: path, userCallbacks: []};

var files = ['aardvarkStrings.js', 'aardvarkUtils.js', 'aardvarkDBox.js', 'aardvarkCommands.js', 'aardvarkMain.js'];

var headElems = document.getElementsByTagName('head');
for (var i=0; i<files>

plus this bookmarklet:

javascript:document.getElementsByTagName('head')[0].appendChild(document.createElement('script')).setAttribute('src','http://karmatics.com/aardvark/loader.js')

equal to http://userscripts.org/scripts/show/27307

how to do a script for this? (with a Hot-Key or with a Button one the Corner of a page)

more at: http://karmatics.com/aardvark/bookmarklet.html