Recognise mouse click in a table...

Hi all, I'll try to explain my problem - I've got an image on a web page (html). When the mouse is over this, hey presto, a div tag becomes visible underneath it with a load of submenus in.

I've got a table with 3 fields in - each for a submenu. I could use a button or image in each of these fields & capture the click event to do something, I wondered if I could trap the mouseover or click events for a standard table field (<td> though), if so could someone give me some very basic code for how I could recognise the click on one of these:

Code:

---

<DIV id="div1">
    <table id="tbl1">
    <tr id="tr1">
      <td="td1"></td>
      <td="td2"></td>
      <td="td3"></td>
    </tr>
    </table>
</DIV>

---

It's okay thanks, I've just found there's an onclick event of a <td> tag - I've managed to use this to pass a value to a function.