WATIR - Clicking img

[Tracy Pyne]

This is driving me up the wall.

I need to click on an apply button, however the Javascript has a number
of hidden buttons. You would think the developer would identify each one
uniquely but he hasn't. Each one is:

<input type="image" name="apply"
onClick="document.NewforOutputForm.mode.value='New';"
src="../images/apply_btn_1.gif"
OnMouseOver="this.src='../images/apply_btn_2.gif'"
OnMouseOut="this.src='../images/apply_btn_1.gif'" />

the only difference is the onClick bit.

Any ideas as to how I can click this damn button?

I've tried numerous things so any help would be appreciated.

Thanks
Tracy