Navigator 3.0
image.lowsrc
The lowsrc property of the Image object is a read/write string that specifies the URL of an alternate image (usually a smaller one) to display when the user's browser is running on a low-resolution monitor. The initial value is specified by the LOWSRC attribute of the <IMG> tag.
Setting this property has no immediate effect. If the src property is set, however, a new image will be loaded, and on low-resolution systems, the current value of the lowsrc property will be used instead of the newly updated value of src.