var about_off = new Image();
var about_on = new Image();
var studio_off = new Image();
var studio_on = new Image();
var services_off = new Image();
var services_on = new Image();
var sound_off = new Image();
var sound_on = new Image();
var contact_off = new Image();
var contact_on = new Image();
var img_path = "./images/";
about_off.src = img_path+"n_about.gif";
about_on.src = img_path+"n_about_on.gif";  //variables for about button
studio_off.src = img_path+"n_studio.gif";
studio_on.src = img_path+"n_studio_on.gif";  //variables for studio button
services_off.src = img_path+"n_services.gif";
services_on.src = img_path+"n_services_on.gif";  //variables for services button
sound_off.src = img_path+"n_sound.gif";
sound_on.src = img_path+"n_sound_on.gif";  //variables for sound button
contact_off.src = img_path+"n_contact.gif";
contact_on.src = img_path+"n_contact_on.gif";  //variables for contact button