switching table attributes with JS

Hi there,

I'm trying to do a merge of the following two scripts:

<body onload="classChange();">
<script type="text/javascript">
function classChange() {
      for (i=0;i<document.getElementsByTagName("p").length; i++) {
            if (document.getElementsByTagName("p").item(i).className == "main"){
                  document.getElementsByTagName("p").item(i).style.color = "red";

function changeSize(px){
   var table = document.getElementById("tableMain2");

The issue is that I need to change the hard coded width of a table that only has class="main" attributed to it.  Unfortunately, I cannot change the HTML code.


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You can use:

function tableMainChange() {
for(i = 0; i < document.getElementsByTagName("table").length;i++)
          if (document.getElementsByTagName("table").item(i).className == "main"){
               document.getElementsByTagName("table").item(i).setAttribute("width", "100px");


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seamusseamusAuthor Commented:
sorry for the delay in accepting this answer... worked like a charm!
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