// rollovers
back_off = new Image();
back_off.src = "/images/button.arrow_left.gif";
back_on = new Image();
back_on.src = "/images/button.arrow_left_on.gif";

next_off = new Image();
next_off.src = "/images/button.arrow_right.gif";
next_on = new Image();
next_on.src = "/images/button.arrow_right_on.gif";

secrets_off = new Image();
secrets_off.src = "/images/five_secrets.gif";
secrets_on = new Image();
secrets_on.src = "/images/five_secrets_on.gif";

hugo_off = new Image();
hugo_off.src = "/images/call_hugo.gif";
hugo_on = new Image();
hugo_on.src = "/images/call_hugo_on.gif";

more_off = new Image();
more_off.src = "/images/button.learn_more.gif";
more_on = new Image();
more_on.src = "/images/button.learn_more_on.gif";

// useful functions
function setImage(imgName, newStateImage){
  document.getElementById(imgName).src = eval(newStateImage+".src");
}
function setElementClass(ele_id, changeto_class) {
  document.getElementById(ele_id).className = changeto_class;
}