To display image field properties in the Property inspector, select an image field in a form. See also Adding an object to a form.
ImageField Assigns a name to the image field.
SRC Sets the source file for the field. Click the folder icon to browse to an image file on your hard drive.
Value Specifies the value that is passed to the server when the form is submitted.
Alt Specifies alternative text that appears in place of the image for text-only browsers or for browsers set to download images manually. In some browsers, this text also appears when the pointer is over the image