if (document.images) {

// preload inactive images
nav1=new Image();
nav1.src="home.png";

nav2=new Image();
nav2.src="menu.png";

nav3=new Image();
nav3.src="specials.png";

nav4=new Image();
nav4.src="events.png";

nav5=new Image();
nav5.src="fundraising.png";

nav6=new Image();
nav6.src="catering.png";

nav7= new Image();
nav7.src="comments.png";

email= new Image();
email.src="email.png";



// preload active images
nav1on=new Image();
nav1on.src="home2.png";

nav2on=new Image();
nav2on.src="menu2.png";

nav3on=new Image();
nav3on.src="specials2.png";

nav4on=new Image();
nav4on.src="events2.png";

nav5on=new Image();
nav5on.src="fundraising2.png";

nav6on=new Image();
nav6on.src="catering2.png";

nav7on= new Image();
nav7on.src="comments2.png";

emailon= new Image();
emailon.src="email2.png";

}

function img_act(imgName) {
if (document.images) {
imgOn = eval(imgName + "on.src");
document [imgName].src = imgOn;
}
}

function img_inact(imgName) {
if (document.images) {
imgOff = eval(imgName + ".src");
document [imgName].src = imgOff;
}
}