initVml.js

function initVml(){
	if(!Browser.Engine.trident) return;
	document.namespaces.add('v', 'urn:schemas-microsoft-com:vml');
	vmlSheet=new StyleSheet().addRule('v\\:*', 'behavior:url(#default#VML)');
}
initVml();
var rect=new Element('v:rect',{
	styles:{
		width: 100,
		height: 100,
		left: 10,
		top: 10,
		position: 'absolute'
	},
	fillcolor:'yellow'
}).inject(document.body);