function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		product_over = newImage("/images/menubar/product_over.gif");
		special_over = newImage("/images/menubar/special_over.gif");
		news_over = newImage("/images/menubar/news_over.gif");
		why_over = newImage("/images/menubar/why_over.gif");
		testimonials_over = newImage("/images/menubar/testimonials_over.gif");
		media_over = newImage("/images/menubar/media_over.gif");
		future_over = newImage("/images/menubar/future_over.gif");
		preloadFlag = true;
	}
}

var popUpWin=0;
var left=0;
var top=0;

function popUpWindow(URLStr, width, height) {
  if(popUpWin) {
    if(!popUpWin.closed) popUpWin.close();
  }
  left = parseInt(window.screen.width) / 2 - width / 2;
  top = parseInt(window.screen.height) / 2 - height / 2; 
  
  popUpWin = open(URLStr, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=yes,width='+width+',height='+height+',left='+left+', top='+top+',screenX='+left+',screenY='+top+'');
}