var showMenu = false;

function OnMouseOverButton(tag)
{
	Reset();
	eval("document.getElementById('" + tag + "').src = '/images/h_" + tag + ".png'");
	if(showMenu)
		eval("document.getElementById('menu_" + tag + "').style.visibility='visible'");
}

function OnMouseOutButton(tag)
{
//	eval("document.getElementById('" + tag + "').src = '/images/n_" + tag + ".png'");
	showMenu = true;
}

function Reset()
{
	document.getElementById("nn").src = "/images/n_nn.png";
	document.getElementById("product").src = "/images/n_product.png";
	document.getElementById("download").src = "/images/n_download.png";
	document.getElementById("shop").src = "/images/n_shop.png";
	document.getElementById("support").src = "/images/n_support.png";
	document.getElementById("company").src = "/images/n_company.png";

	document.getElementById("menu_nn").style.visibility = 'hidden';
	document.getElementById("menu_product").style.visibility = 'hidden';
	document.getElementById("menu_download").style.visibility = 'hidden';
	document.getElementById("menu_shop").style.visibility = 'hidden';
	document.getElementById("menu_support").style.visibility = 'hidden';
	document.getElementById("menu_company").style.visibility = 'hidden';
}