var mMenu = 'globalnavi';

function init() {
	// Main Navigation Setting...
	var master = document.getElementById(mMenu);
	var anchors = master.getElementsByTagName('a');
	for (var i=0; i<anchors.length; i++) {
		var attrs = anchors[i].parentNode.parentNode;
		if (anchors[i].parentNode.parentNode.parentNode == master) {
			anchors[i].onmouseover = function() {
				hide_panel();
				show_panel(this);
			}
		}
	}
	
	var master = document.getElementById('gotop');
	var anchors = master.getElementsByTagName('a');
	for (var i=0; i<anchors.length; i++) {
		anchors[i].onmouseover = hide_panel;
	}
	
	document.onmouseup = hide_panel;
}

function show_panel(target) {
	var master = document.getElementById(mMenu);
	var anchors = master.getElementsByTagName('a');
	for (var i=0; i<anchors.length; i++) {
		if (anchors[i] != target) continue;
		var myChild = anchors[i].parentNode.getElementsByTagName('ul');
		for (var j=0; j<myChild.length; j++) {
			myChild[j].style.display = 'block';
		}
	}
}
function hide_panel() {
	var master = document.getElementById(mMenu);
	var anchors = master.getElementsByTagName('a');
	for (var i=0; i<anchors.length; i++) {
		var myChild = anchors[i].parentNode.getElementsByTagName('ul');
		for (var j=0; j<myChild.length; j++) {
			myChild[j].style.display = 'none';
		}
	}
}

window.onload = function() { init(); }