I am trying to use image for button as:
<button name="foo" type="button" value="bar" onclick="AjaxResponse()" > <img src="img.png"> </button>
or
<button name="foo" type="button" value="bar" onclick="AjaxResponse()" img src="img.png" />
Both does not show button with image. It just shows small icon, which performs correct operation on click. But why the image could not be seen?