how to run an event-triggered function from inside a HTML tag?

Hello,
when I call my "moveObject" function by an onMouseUp event handler like this:

<script>
document.onmouseup = function (e) {
moveObject(e,testTable);
};
</script>
everything works fine. But I would like to call that function not by clicking anywhere in the document, but by clicking on a table clell. I used this:

...<td onMouseUp="moveObject(e,testTable)">My text</td>...

This unfortunately doesn't work. Can You see the error??

Thanx Kozelnik

everything works fine

not for all browsers, anyway

What is, in fact, yout final goal? You want do attach dynamically an event to an object?

Yes. I want my function "moveObject" to be executed by clicking on a specific cell in a table. The function moves another table to the same position as the mouse cursor. The function script is:
function moveObject(e,object) {
object.style.position = "absolute";
object.style.top = e.pageY;
object.style.left = e.pageX;
};

onclick="moveObject(event, testTable)"