Returns a reference to a caption element nested inside the table. From this reference you can access properties and methods of the caption object. In Netscape 6, you can create a new caption element, and assign that new element's reference to the caption property of a table, making the property read/write in that browser (although you really should be using the createCaption( ) method). For all browsers, however, you can modify properties of the caption object returned by the caption property.