Note : Both Netscape and Internet Explorer support the Forms collection (Netscape call it an array). For properties, methods and events that are supported by
<FORM> elements, see the
The Forms collection is an ordered, indexed (in document source order) array, containing a reference to every
<FORM> element in a document.
Discrete form objects would normally be retrieved by their index in the Forms collection (for example
document.forms(0) contains a reference to the first
<FORM> element in the document), but a string value can be used, as long as that string is a valid identifier (
NAME attribute value) for a
<FORM> in the document.
both identify the same
<FORM> in the document. The first method makes scripts easier to read and understand though.
length property returns the number of forms in the collection (and therefore the document). Note that the
length count starts at 1, not 0 as the forms collection index does. Therefore, the
length property may return a value of 5, but to access the 4th form, you'd need to use
item method retrieves single items, or sub-collections from the all collection. It accepts the following arguments:
index is a number, then the method returns a reference to the form object at that position in the forms collections index. I.e.
strTag equal to the
ACTION attribute of the documents 3rd
<FORM> element. As you can see, this is effectively the long-hand version of using
index property is a string value, then the
item method returns a sub-collection, containing a reference to every element in the document that has its
NAME attribute set to the string contained in the
index argument. To retrieve certain element objects from this sub-collection, the
sub-index argument must be used.
© 1995-1998, Stephen Le Hunte