home = new Image; 
home_over = new Image; 
gallery = new Image; 
gallery_over = new Image; 
trade = new Image; 
trade_over = new Image; 
cleaning_restoration = new Image; 
cleaning_restoration_over = new Image; 
contact = new Image; 
contact_over = new Image; 
email = new Image;
email_over = new Image;

previous = new Image;
next = new Image;
carpets_rugs_1 = new Image;
carpets_rugs_2 = new Image;
carpets_rugs_3 = new Image;
runners = new Image;

previous_over = new Image;
next_over = new Image;
carpets_rugs_1_over = new Image;
carpets_rugs_2_over = new Image;
carpets_rugs_3_over = new Image;
runners_over = new Image;

home.src = "images/menu/home.png";
home_over.src = "images/menu/home_over.png";

gallery.src = "images/menu/gallery.png";
gallery_over.src = "images/menu/gallery_over.png";

trade.src = "images/menu/trade.png";
trade_over.src = "images/menu/trade_over.png";

cleaning_restoration.src = "images/menu/cleaning_restoration.png";
cleaning_restoration_over.src = "images/menu/cleaning_restoration_over.png";

contact.src = "images/menu/contact.png";
contact_over.src = "images/menu/contact_over.png";

email.src = "images/email.jpg";
email_over.src = "images/email_over.jpg";

previous.src = "images/menu/previous.png";
previous_over.src = "images/menu/previous_over.png";

next.src = "images/menu/next.png";
next_over.src = "images/menu/next_over.png";

carpets_rugs_1.src = "images/menu/carpets_rugs_1.png";
carpets_rugs_2.src = "images/menu/carpets_rugs_2.png";
carpets_rugs_3.src = "images/menu/carpets_rugs_3.png";
runners.src = "images/menu/runners.png";

carpets_rugs_1_over.src = "images/menu/carpets_rugs_1_over.png";
carpets_rugs_2_over.src = "images/menu/carpets_rugs_2_over.png";
carpets_rugs_3_over.src = "images/menu/carpets_rugs_3_over.png";
runners_over.src = "images/menu/runners_over.png";

function nav_over(button) {
	document.getElementById(button).src = eval(button + "_over.src");
}

function nav_out(button) {
	document.getElementById(button).src = eval(button + ".src");
}