if (document.images) {
homeOn = new Image();
homeOn.src = "images/home_mouse.gif";
homeOff = new Image();
homeOff.src = "images/home.gif";

aboutOn = new Image();
aboutOn.src = "images/about_mouse.gif";
aboutOff = new Image();
aboutOff.src = "images/about.gif";

horseOn = new Image();
horseOn.src = "images/horse_mouse.gif";
horseOff = new Image();
horseOff.src = "images/horse.gif";

saleOn = new Image();
saleOn.src = "images/sale_mouse.gif";
saleOff = new Image();
saleOff.src = "images/sale.gif";

pressroomOn = new Image();
pressroomOn.src = "images/pressroom_mouse.gif";
pressroomOff = new Image();
pressroomOff.src = "images/pressroom.gif";

contactOn = new Image();
contactOn.src = "images/contact_mouse.gif";
contactOff = new Image();
contactOff.src = "images/contact.gif";
}

function activate(image_name) {
if (document.images) {
document[image_name].src = eval(image_name + "On.src");
}
}
function deactivate(image_name) {
if (document.images) {
document[image_name].src = eval(image_name + "Off.src");
}
}

function validate()
{
complete=true;
var name=document.form.name.value;
var email=document.form.email.value;
var phone=document.form.phone.value;
var marketing=document.form.marketing.value;

if ((name == "") || (name == null))
{
alert ("Please enter your name.");
complete=false;
}
if (((email == "") || (email == null)) || ((email.indexOf("@")==-1) || (email.indexOf(".")==-1))) 
{
alert ("Please enter in a valid e-mail address.");
complete=false;
}
if ((phone == "") || (phone == null))
{
alert ("Please enter your phone number.");
complete=false;
}
if (marketing == "") 
{
alert ("Please tell us how you heard about us.");
complete=false;
}
return complete;
}