var dds = Array('dd1', 'dd2', 'dd3', 'dd4', 'dd5', 'dd6');
function loadNav() {
	var nav = document.getElementById('nav');
	for (var i=0; i<dds.length; i++) {
		var el = document.getElementById(dds[i]);
		var bg = el.getElementsByTagName('div')[0];
		bg.style.height = el.clientHeight + 'px';
		height = el.clientHeight;
		
		el.style.visibility='visible';
		el.style.display='none';
	}
}
function showMenu(el) {
	hideMenu();
//	el.className = 'active';
	var parent = el.parentNode;
	var menu = parent.getElementsByTagName('div')[0];
	menu.style.display='block';
	
}
function hideMenu() {
	for (var i=0; i<dds.length; i++) {
		var el = document.getElementById(dds[i]);
		var parent = el.parentNode;
		el.style.display='none';
		var anchor = parent.getElementsByTagName('a')[0];
		anchor.className = '';
	}
}

function bodyHideMenu(event) {
	if ((event.clientY > 200) || (event.clientY < 0)){
		hideMenu();
	}
}