function shadow(shadId) {
	var nav = document.getElementById(shadId);
	var items = nav.getElementsByTagName('h1').length;
	var i;
	for (i = 0; i < items; i++) {
		var itemName = nav.getElementsByTagName('h1')[i].getElementsByTagName('div')[0].innerHTML;
		nav.getElementsByTagName('h1')[i].getElementsByTagName('div')[0].innerHTML = '<span>' + itemName + '</' + 'span>' + itemName;
	}
}