I would like to know all possible attributes of an element in JS.
I did :
s = document.getElementById(\"idSvg\");
r = s.attributes;
alert(r.length)
http://www.w3.org/TR/SVG/attindex.html
baseProfile class contentScriptType contentStyleType externalResourcesRequired height id onabort onactivate onclick onerror onfocusin onfocusout onload onmousedown onmousemove onmouseout onmouseover onmouseup onresize onscroll onunload onzoom preserveAspectRatio requiredExtensions requiredFeatures style systemLanguage version viewBox width xml:base xml:lang xml:space x y zoomAndPan
you can try this, but better off looking it up on w3.org
(function() {
var s = document.getElementById("idSvg");
for (var key in s) {
document.write(key + "<br />");
}
})();
I don't think it is possible, as JS have no clue whatsoever about DTD format. You need to look at the tag specification (taking into account the proper doctype that tag will be used in).