LinkStyle | NN 6 IE n/a DOM 2
The LinkStyle object is a W3C DOM abstract object that gets blended into the link element object. Through this blending, the Netscape 6 link element object gains the sheet property, which provides a reference to the styleSheet object linked into the current document through a link element.
Object Model Reference
    document.getElementById("linkElementID")
Object-Specific Properties
sheet
Object-Specific Methods
None.
Object-Specific Event Handler Properties
None.

sheet | NN 6 IE n/a DOM 1
| Read-only
Returns a reference to the styleSheet object (CSSStyleSheet object in W3C DOM terminology) linked into the current document when a style sheet is specified as the target of the link element. IE for Windows provides a similar property for a link element object: styleSheet.
Example
    var extSS = document.getElementById("link3").sheet;
Value
styleSheet object reference.
Default
None.