// Netscape 3.0 compatibility test (for javascript image swapping)
compat = false;
if( parseInt( navigator.appVersion ) >= 3 ) { compat = true; }
// cache images for quick swapping
if( compat )
{

greenthum1 = new Image;
greenthum1.src = "images/subscribe2.jpg";
redthum1 = new Image;
redthum1.src = "images/subscribe1.jpg";

greenthum2 = new Image;
greenthum2.src = "images/unsubscribe2.jpg";
redthum2 = new Image;
redthum2.src = "images/unsubscribe1.jpg";

greenthum3 = new Image;
greenthum3.src = "images/post2.jpg";
redthum3 = new Image;
redthum3.src = "images/post1.jpg";

greenthum4 = new Image;
greenthum4.src = "images/remove2.jpg";
redthum4 = new Image;
redthum4.src = "images/remove1.jpg";

greenthum5 = new Image;
greenthum5.src = "images/edit2.jpg";
redthum5 = new Image;
redthum5.src = "images/edit1.jpg";

greenthum6 = new Image;
greenthum6.src = "career-day/images/sign-up2.jpg";
redthum6 = new Image;
redthum6.src = "career-day/images/sign-up1.jpg";

}
// swap images using the cached images
function glow(x, y)
{
   if( compat ) { document.images[x].src=eval(y+'.src'); }
}