I was using the zebra striping javascript from A List Apart earlier for a project and kept getting a javascript error in Internet Explorer 6, 7, and 8. I found that quite a few people have had the same problem!
I was able to fix the problem by simply returning a null value at the end of the stripe() function. You’ll see the update below. Hope this helps somebody out!
// this function is needed to work around // a bug in IE related to element attributes function hasClass(obj) { var result = false; if (obj.getAttributeNode("class") != null) { result = obj.getAttributeNode("class").value; } return result; } function stripe(id) { // the flag we'll use to keep track of // whether the current row is odd or even var even = false; // if arguments are provided to specify the colours // of the even & odd rows, then use the them; // otherwise use the following defaults: var evenColor = arguments[1] ? arguments[1] : "#854fc2"; var oddColor = arguments[2] ? arguments[2] : "#6f3ba9"; // obtain a reference to the desired table // if no such table exists, abort var table = document.getElementById(id); if (! table) { return; } // by definition, tables can have more than one tbody // element, so we'll have to get the list of child // <tbody>s var tbodies = table.getElementsByTagName("tbody"); // and iterate through them... for (var h = 0; h < tbodies.length; h++) { // find all the <tr> elements... var trs = tbodies[h].getElementsByTagName("tr"); // ... and iterate through them for (var i = 0; i < trs.length; i++) { // avoid rows that have a class attribute // or backgroundColor style if (! hasClass(trs[i]) && ! trs[i].style.backgroundColor) { // get all the cells in this row... var tds = trs[i].getElementsByTagName("td"); // and iterate through them... for (var j = 0; j < tds.length; j++) { var mytd = tds[j]; // avoid cells that have a class attribute // or backgroundColor style if (! hasClass(mytd) && ! mytd.style.backgroundColor) { mytd.style.backgroundColor = even ? evenColor : oddColor; } } } // flip from odd to even, or vice-versa even = ! even; } } return null; // For IE. }