Pages in FGUI

There are a few functions:

Creates a new page
page: createPage(<string: name>, <function: before>, <function: after>, <function: onopen>, <function: onclose>);
name: name of page
before: function called when page is active before the elements are drawn
after: function called when page is active after the elements are drawn
onopen: function called when page set as active page
onclose: function called when page unset as active page
returns a page object

Sets the current page:
void: setPage(<string: name>);
name: sets the active page to the this page

And a couple global variables:
<object: pageMap> an object which contains every current page
<page: activePage> the current page

When no page is specified, it is presumed to be "default"

To add an element to a page:
element: createElement(<number: x>, <number: y>, <number: w>, <number: h>, <string|void: page>);
x: x position of element
y: y position of element
w: width of element
h: height of element
page: add element to this page (defaults to "default")
returns an element object

pages also contain methods:
void: page.addElement(<element: elem>) which adds an element to the page
void: page.removeElement(<element: elem>) which removes an element from the page

elements contain methods:
void: elem.addToPage(<string: page>) which adds an element to the page
void: elem.removeFromPage(<string: page>) which removes an element from the page