addLoadEvent(init_nav);

function addLoadEvent(func) {
	var oldonload = window.onload;
	if (typeof window.onload != 'function')
		window.onload = func;
	else
		window.onload =  function() {oldonload(); func();}
}


function init_nav() {
	var x = (document.getElementById('HEADER')).getElementsByTagName('li');

	for(var i=0; i<x.length; i++) {

		if((x[i].getElementsByTagName('ul'))[0]) {
			x[i].onmouseover = showNav;
			x[i].onmouseout = hideNav;
		}
	}
}

function showNav () {
	var sub = this.getElementsByTagName('ul');
	sub[0].style.display = 'block';
	sub[0].style.color = '#4D4D4D';
		

}

function hideNav () {
	var sub = this.getElementsByTagName('ul');
	sub[0].style.display = 'none';
}