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";

philosophyOn = new Image();
philosophyOn.src = "images/training_philosophy_mouse.gif";
philosophyOff = new Image();
philosophyOff.src = "images/training_philosophy.gif";

trainers_courseOn = new Image();
trainers_courseOn.src = "images/trainers_course_mouse.gif";
trainers_courseOff = new Image();
trainers_courseOff.src = "images/trainers_course.gif";

testimonialsOn = new Image();
testimonialsOn.src = "images/testimonials_mouse.gif";
testimonialsOff = new Image();
testimonialsOff.src = "images/testimonials.gif";

faqsOn = new Image();
faqsOn.src = "images/faqs_mouse.gif";
faqsOff = new Image();
faqsOff.src = "images/faqs.gif";

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

puppyOn = new Image();
puppyOn.src = "images/puppy_course_mouse.gif";
puppyOff = new Image();
puppyOff.src = "images/puppy_course.gif";

leash_basicOn = new Image();
leash_basicOn.src = "images/leash_basic_mouse.gif";
leash_basicOff = new Image();
leash_basicOff.src = "images/leash_basic.gif";

leash_advancedOn = new Image();
leash_advancedOn.src = "images/leash_advanced_mouse.gif";
leash_advancedOff = new Image();
leash_advancedOff.src = "images/leash_advanced.gif";

aggressionOn = new Image();
aggressionOn.src = "images/aggression_mouse.gif";
aggressionOff = new Image();
aggressionOff.src = "images/aggression.gif";

one_day_leashOn = new Image();
one_day_leashOn.src = "images/one_day_leash_mouse.gif";
one_day_leashOff = new Image();
one_day_leashOff.src = "images/one_day_leash.gif";

video_contestOn = new Image();
video_contestOn.src = "images/video_contest_mouse.gif";
video_contestOff = new Image();
video_contestOff.src = "images/video_contest.gif";

employmentOn = new Image();
employmentOn.src = "images/employment_mouse.gif";
employmentOff = new Image();
employmentOff.src = "images/employment.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");
}
}
}