function tool(id) {
    var all_links = document.getElementsByTagName("a");
    var old_url = '';
    for (var i = 0; i < all_links.length; i++ ){
	    old_url = all_links[i].getAttribute('href'); // А диз?
	    if (old_url != null){
		    if (old_url.substr(0, 7) == 'http://'){
               all_links[i].setAttribute('href','http://traffru.ru/'+id+'/'+old_url);
            }
	    }
    }
}