document.observe('dom:loaded', function() {
var tObjs = document.getElementsByTagName('table');
for (var x = 0; x < tObjs.length; x++) {
...
JavaScript Highlight the table row on ...
document.observe('dom:loaded', function() {
var tObjs = document.getElementsByTagName('table');
for (var x = 0; x < tObjs.length; x++) {
...
A fairly common thing to do...