Making a directory tree with Dreamweaver

There is a "+" in front of the total directory, and one presses this "+", can display its subdirectory, "+" that becomes "-", a Click "-", you can hide its subdirectories, as in the resource manager, this needs to do two pages, a page to write the total directory, a page to write a subdirectory. The "+" number on the page of the total catalog is set as a hyperlink, and the address of the subdirectory page is added to the "link" column.

The "-" number on the page of the handle directory is set to hyperlink, adding the address of the total directory page to the "link" column. The specific effect can look at the Dreamweaver help document, in this Help document is also click the total directory, pop-up subdirectory, the total directory on the directory is returned to the total directory, but no use of "+", "-" said just. You can see the source code of the document again at a glance.