UsrDom = (document.all?"ie":(document.getElementById?"Gk":(document.layers?"nn":"ot")));

if (document.images) {
	home_over = newImage("/img/nav-home-on.gif");
	about_over = newImage("/img/nav-about-on.gif");
	concept_over = newImage("/img/nav-concept-on.gif");
	service_over = newImage("/img/nav-service-on.gif");
	contact_over = newImage("/img/nav-contact-on.gif");
}

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

function ChImg(ImgNam,ChSrc) {
	if (document.images) {
		document.images[ImgNam].src = ChSrc;
	}
}

function openWin(theURL,widthPx,heightPx){
	NewWin = window.open(theURL,"newWin","toolbar=yes,location=yes,status=yes,resizable=yes,scrollbars=yes,width="+widthPx+",height="+heightPx);
	NewWin.focus();
}