javascript InputTypeImage Description

The image-type input object is first and foremost a button-like form control element, but with several characteristics of an img element, as well. Its default behavior is that of a submit-type button. The coordinates of the mouse click within the image's rectangle are passed as form data (in the format elemName.x=65&elemName.y=44) when the form is submitted. Note that unlike most other input element types, this input type was not scriptable in early browsers. IE for Windows may not recognize a reference to this element via the enclosing form. Accessing the form via its ID is completely reliable, however.