first of all...why all the escaping the quotes?
second, if you want a button, a real button but with an image, use a real button and set:
<input type="submit" style="background:url(IMAGE_LOCATION) no-repeat; border: 0px;".....
that way at least you have a real button!
now, if your button is within the <form></form> tags, then it is a form element, which mens that Button.form relates to the parent. You never actually need to know the forms name.