[Rise]

pzyryanov,

<script>
var menu = {
	"item1.1": {
		"item2.1": {
			"item3.1": "#link3.1",
			"item3.2": "#link3.2"
		},
		"item2.2": "#link2.2"
	},
	"item1.2": {
		"item2.3": {
			"item3.3": "#link3.3",
			"item3.4": "#link3.4"
		}
	},
	"item1.3": "#link1.3"
};
function build(list) {
	var html = '', item, deep;
	for (item in list) {
		deep = typeof list[item] == 'object';
		html += '<li><a href="' +(deep ? '#' : list[item])+ '">' +item+ '</a>' +(deep ? build(list[item]) : '')+ '</li>';
	}
	return '<ul>' + html + '</ul>';
}
document.write(build(menu));
</script>