btn_Home_off = new Image();
btn_Home_off.src = "images/btn_home_off.jpg";
btn_Home_on = new Image();
btn_Home_on.src = "images/btn_home_on.jpg";
btn_Photos_off = new Image();
btn_Photos_off.src = "images/btn_photos_off.jpg";
btn_Photos_on = new Image();
btn_Photos_on.src = "images/btn_photos_on.jpg";
btn_Quotes_off = new Image();
btn_Quotes_off.src = "images/btn_quotes_off.jpg";
btn_Quotes_on = new Image();
btn_Quotes_on.src = "images/btn_quotes_on.jpg";

btn_Contact_off = new Image();
btn_Contact_off.src = "images/btn_contact_off.jpg";
btn_Contact_on = new Image();
btn_Contact_on.src = "images/btn_contact_on.jpg";
btn_Shows_off = new Image();
btn_Shows_off.src = "images/btn_shows_off.jpg";
btn_Shows_on = new Image();
btn_Shows_on.src = "images/btn_shows_on.jpg";
btn_Music_off = new Image();
btn_Music_off.src = "images/btn_music_off.jpg";
btn_Music_on = new Image();
btn_Music_on.src = "images/btn_music_on.jpg";

function swap(){
   if (document.images){
      for (var x=0;x<swap.arguments.length;x+=2) {
         document.getElementById(swap.arguments[x]).src = eval(swap.arguments[x+1] + ".src");
      }
   }
}