// mouseover functions
// check for image object

var OK = 0;
if (document.images) OK =1;

// fetch images to browser cache
if (OK) {
	normal = new MakeArray(20);
	over = new MakeArray(20);
	blurb = new MakeArray(20);
	normal[1].src = "images/nav_home.gif";
	normal[2].src = "images/nav_about.gif";
	normal[3].src = "images/sub_nav_dr_kramer.gif";
	normal[4].src = "images/sub_nav_staff.gif";
	normal[5].src = "images/nav_qis.gif";
	normal[6].src = "images/sub_nav_what_is.gif";
	normal[7].src = "images/sub_nav_cms_forms.gif";
	normal[8].src = "images/sub_nav_glossary.gif";
	normal[9].src = "images/sub_nav_qis_news.gif";
	normal[10].src = "images/nav_abaqis.gif";
	normal[11].src = "images/nav_ask.gif";
	normal[12].src = "images/nav_contact.gif";
	normal[13].src = "images/sub_nav_links.gif";
	normal[14].src = "images/nav_training.gif";
	normal[15].src = "images/nav_events.gif";
	normal[16].src = "images/nav_events_exhibiting.gif";
	normal[17].src = "images/nav_events_speaking.gif";
	normal[18].src = "images/nav_training_instructors.gif";
	normal[19].src = "images/nav_careers.gif";
	over[1].src = "images/nav_home1.gif";
	over[2].src = "images/nav_about1.gif";
	over[3].src = "images/sub_nav_dr_kramer1.gif";
	over[4].src = "images/sub_nav_staff1.gif";
	over[5].src = "images/nav_qis1.gif";
	over[6].src = "images/sub_nav_what_is1.gif";
	over[7].src = "images/sub_nav_cms_forms1.gif";
	over[8].src = "images/sub_nav_glossary1.gif";
	over[9].src = "images/sub_nav_qis_news1.gif";
	over[10].src = "images/nav_abaqis1.gif";
	over[11].src = "images/nav_ask1.gif";
	over[12].src = "images/nav_contact1.gif";
	over[13].src = "images/sub_nav_links1.gif";
	over[14].src = "images/nav_training1.gif";
	over[15].src = "images/nav_events1.gif";
	over[16].src = "images/nav_events_exhibiting1.gif";
	over[17].src = "images/nav_events_speaking1.gif";
	over[18].src = "images/nav_training_instructors1.gif";
	over[19].src = "images/nav_careers1.gif";
}

function MakeArray(n) {
	this.length = n;
	for (var i = 1; i<=n; i++) {
		this[i] = new Image();
	}
		return this;
}

function msover(num) {
	if ( OK) {
		loadImage = "Image" + num;
		document.images[loadImage].src = over[num].src;
	}
}

function msout(num) {
	if ( OK) {
		loadImage = "Image" + num;
		document.images[loadImage].src = normal[num].src;
			}
}