function addLink() {
	var body_element = document.getElementsByTagName('body')[0];
	var selection;
	selection = window.getSelection();
	pagelink="<BR/>\n<BR/>\nTratto da: <a href='"+location.href+"'>Z0N3-H4CK.NET</a>";
	var copytext = selection + pagelink;
	var newdiv = document.createElement('div');
	newdiv.style.position='absolute';
	newdiv.style.left='-99999px';
	body_element.appendChild(newdiv);
	newdiv.innerHTML = copytext;
	selection.selectAllChildren(newdiv);
	window.setTimeout(function() {
		body_element.removeChild(newdiv);
	},0);
	return true;
}

document.oncopy = addLink;