// Copyright 2006-2007 javascript-array.com

var timeout	= 500;
var closetimer	= 0;
var ddmenuitem	= 0;

// open hidden layer
function mopen(id)
{	
	// cancel close timer
	mcancelclosetime();

	// close old layer
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';

	// get new layer and show it
	ddmenuitem = document.getElementById(id);
	ddmenuitem.style.visibility = 'visible';

}
// close showed layer
function mclose()
{
	if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
}

// go close timer
function mclosetime()
{
	closetimer = window.setTimeout(mclose, timeout);
}

// cancel close timer
function mcancelclosetime()
{
	if(closetimer)
	{
		window.clearTimeout(closetimer);
		closetimer = null;
	}
}

// close layer when click-out
document.onclick = mclose; 



<!-- mouseover javascript  -->


loadImage1 = new Image();
loadImage1.src = "http://www.nanomaterialstore.com/nhomeshad.jpg"
staticImage1 = new Image();
staticImage1.src = "http://www.nanomaterialstore.com/nhome.jpg";
loadImage2 = new Image();
loadImage2.src = "http://www.nanomaterialstore.com/ncompanyshad.jpg";
staticImage2 = new Image();
staticImage2.src = "http://www.nanomaterialstore.com/ncompany.jpg";
loadImage3 = new Image();
loadImage3.src = "http://www.nanomaterialstore.com/ncontactusshad.jpg";
staticImage3 = new Image();
staticImage3.src = "http://www.nanomaterialstore.com/ncontactus.jpg";

loadImage6 = new Image();
loadImage6.src = "http://www.nanomaterialstore.com/sunnano2.jpg";
staticImage6 = new Image();
staticImage6.src = "http://www.nanomaterialstore.com/sunnano1.jpg";
// End -->


<!-- FRAME BREAKOUT SCRIPT  -->

function breakout_of_frame()
{
  // see http://www.thesitewizard.com/archive/framebreak.shtml
  // for an explanation of this script and how to use it on your
  // own website
  if (top.location != location) {
    top.location.href = document.location.href ;
  }
}