Specifies the URL of the image that appears on a Button control.
Remarks
The URL can be relative or absolute. For example Images/GreenLeaves.gif
and http://www.MyDomain.com/forestry/trees/Images/GreenLeaves.gif
are both acceptable.
If you choose to display an image on a Button control, you should specify alternate text with the AltText property.
This property is mapped to the Image box on the General Tab of the Button Properties dialog box.