[monolithed]

Aetae, на всякий))

<script type="text/javascript">
window.onload = function() {
     table = document.getElementById('table'), tr = table.rows, i = tr.length;
     while(i--) {
         td = tr[i].cells, j = td.length;
         while(j--) {
             td[j].onclick = (function(i, j) {
                 return function() {
                     alert(i+'x'+j); //tr[i].rowIndex+'x'+td[j].cellIndex
                 };
             })(i, j);
         }
     }
 };
</script>


<style type="text/css">td {width: 20px; height: 20px; background:#ddf; border: 1px solid #99c; }</style>

<table id="table">
    <tr>
        <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
    </tr>
    <tr>
        <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
    </tr>
    <tr>
        <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
    </tr>
    <tr>
        <td></td><td></td><td></td><td></td><td></td><td></td><td></td>
    </tr>
</table>