function navOn(domParent,domSubMenu) {
	var par = document.getElementById(domParent);
	var coords = findPos(par);
	
	par.src = "nav_images/rollover_" + domParent + ".gif";
	
	if (domSubMenu) {
		var menu = document.getElementById(domSubMenu);
		menu.style.display = 'block';
		menu.style.left = coords[0] + 'px';
		menu.style.top = coords[1] + coords[3] + 'px';
	}
}

function subnavOn(domParent,domSubMenu) {
	var par = document.getElementById(domParent);
	var menu = document.getElementById(domSubMenu);
	var coords = findPos(par);
	
	par.src = "nav_images/rollover_" + domParent + ".gif";
	menu.style.display = 'block';
	menu.style.left = coords[0] + coords[2] + 'px';
	menu.style.top = coords[1] + 'px';
}

function navOff(domParent,domSubMenu) {
	var par = document.getElementById(domParent);
	
	par.src = "nav_images/" + domParent + ".gif";
	
	if (domSubMenu) {
		var menu = document.getElementById(domSubMenu);
		menu.style.display = 'none';
	}
}

function subnavOff(domParent,domSubMenu) {
	var par = document.getElementById(domParent);
	var menu = document.getElementById(domSubMenu);
	
	par.src = "nav_images/" + domParent + ".gif";
	menu.style.display = 'none';
}

function findPos(obj) {
	var curleft = curtop = 0;
	if (obj.offsetParent) {
		curleft = obj.offsetLeft
		curtop = obj.offsetTop
		curwidth = obj.offsetWidth
		curheight = obj.offsetHeight
		while (obj = obj.offsetParent) {
			curleft += obj.offsetLeft
			curtop += obj.offsetTop
		}
	}
	return [curleft,curtop,curwidth,curheight];
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}