HTMLElement Prototyping In Safari

We all know (and love!) the fact that Mozilla exposes element constructors (HTMLParagraphElement, for example) for prototyping. Turns out Opera 8 allows you do to the same thing.

So this leaves Safari, which has actually allowed you to do this since 1.0, *but* doesn't publicly expose the constructors. The below code exports constructors into public variables matching those in Mozilla and Opera 8:

/*
HTMLElement Prototyping in KHTML and WebCore
Copyright (C) 2005 Jason Davis, www.jasonkarldavis.com
Additional thanks to Brothercake, www.brothercake.com

This code is licensed under the LGPL:
http://www.gnu.org/licenses/lgpl.html
*/

if (navigator.vendor == "Apple Computer, Inc." || navigator.vendor == "KDE") { // WebCore/KHTML
function(HTMLConstructors) {
for (var i in HTMLConstructors) {
window["HTML" + i + "Element"] = document.createElement(HTMLConstructors[i]).constructor;
}
}({
Html: "html", Head: "head", Link: "link", Title: "title", Meta: "meta",
Base: "base", IsIndex: "isindex", Style: "style", Body: "body", Form: "form",
Select: "select", OptGroup: "optgroup", Option: "option", Input: "input",
TextArea: "textarea", Button: "button", Label: "label", FieldSet: "fieldset",
Legend: "legend", UList: "ul", OList: "ol", DList: "dl", Directory: "dir",
Menu: "menu", LI: "li", Div: "div", Paragraph: "p", Heading: "h1", Quote: "q",
Pre: "pre", BR: "br", BaseFont: "basefont", Font: "font", HR: "hr", Mod: "ins",

Anchor: "a", Image: "img", Object: "object", Param: "param", Applet: "applet",
Map: "map", Area: "area", Script: "script", Table: "table", TableCaption: "caption",
TableCol: "col", TableSection: "tbody", TableRow: "tr", TableCell: "td",
FrameSet: "frameset", Frame: "frame", IFrame: "iframe"
});

function HTMLElement() {}
HTMLElement.prototype = HTMLHtmlElement.__proto__.__proto__;
var HTMLDocument = document.constructor;
var HTMLCollection = document.links.constructor;
var HTMLOptionsCollection = document.createElement("select").options.constructor;
var Text = document.createTextNode("").constructor;
var Node = Text;
}

In Opera < 8, all elements inherit directly from Object(), so you can still prototype Object() if you need to do element prototyping. Internet Explorer's elements *don't* inherit from Object, oddly enough, so who knows with that browser. In any case, there you go. It also happens to work in Konqueror (AFAIK).