/**@class org.w3c.dom.DOMImplementationList The <code>DOMImplementationList</code> interface provides the abstraction of an ordered collection of DOM implementations, without defining or constraining how this collection is implemented. The items in the <code>DOMImplementationList</code> are accessible via an integral index, starting from 0. <p>See also the <a href='http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407'>Document Object Model (DOM) Level 3 Core Specification</a>. @since DOM Level 3 */ var DOMImplementationList = { /**Returns the <code>index</code>th item in the collection. If <code>index</code> is greater than or equal to the number of <code>DOMImplementation</code>s in the list, this returns <code>null</code>. @param {Number} index Index into the collection. @return {Object {org.w3c.dom.DOMImplementation}} The <code>DOMImplementation</code> at the <code>index</code> th position in the <code>DOMImplementationList</code>, or <code>null</code> if that is not a valid index. */ item : function( ) {}, /**The number of <code>DOMImplementation</code>s in the list. The range of valid child node indices is 0 to <code>length-1</code> inclusive. */ getLength : function( ) {}, };