ongoing html5 audio js implamention

html5 audio create

function domCreate(obj) {
		var ref = document.createElement(obj.tag);
		if(obj.att){for (var i = obj.att.length - 1; i >= 0; i--) {
			$(ref).attr(obj.att[i].name, obj.att[i].value);
		};}
		if(obj.children){
			for (var i = obj.children.length - 1; i >= 0; i--) {
				ref.appendChild(domCreate(obj.children[i]));
			};
		}
		return ref;
	}
	function createSound(event, selector, src){
		var obj = {
			'tag':'audio',
			'children': [
				{
					'tag':'source',
					'att': [
								{'name':'src','value':src+'.ogg'},
								{'name':'type','value':'audio/ogg'}
					]
				},
				{
					'tag':'source',
					'att': [
								{'name':'src','value':src+'.mp3'},
								{'name':'type','value':'audio/mpeg'}
					]
				}
			]
		}
		$(selector).each(function(index){
			var audio = domCreate(obj);
			$(this).bind(event, function(){
				audio.play();
			})
		})
	}
	createSound('mouseenter', '#a li, #footer ul li a', '/audio/beep');
	createSound('mouseenter', 'div#brandSlider ul li div a', '/audio/beep2');