areas | NN n/a IE 4 DOM n/a
A collection of all AREA elements. Collection members are sorted in source code order. Internet Explorer lets you use array notation or parentheses to access a single anchor in the collection (e.g., document.anchors[0], document.anchors(0)). To use the ID attribute in a reference to an anchor, access the object via a document.all.elementID reference.
Object Model Reference
IE | document.areas(i) document.areas[i]

length | NN n/a IE 4 DOM n/a
| Read-only
Returns the number of elements in the collection.
Example
    var howMany = document.areas.length
Value Integer.