src
A string that specifies the URL of the document to be loaded into layer.
width
An integer that specifies a new width, in pixels, for layer.
load( ) loads a new document into layer and specifies a width at which the lines of that document are wrapped.
Note, however, that load( ) does not work while the current document is being parsed. For this reason, you should not call load( ) in a top-level script; instead, call it in an event handler or a function called from an event handler.
The src property of the Layer object