browser_name = navigator.appName;
browser_version = parseFloat(navigator.appVersion);
if (browser_name == "Netscape" && browser_version >= 3.0) 
{ rollover = 'true'; }
else if (browser_name == "Microsoft Internet Explorer" && browser_version >= 4.0)
{ rollover = 'true'; }
else { rollover = 'false'; }
if (rollover == 'true') {
friends_r=new Image();friends_r.src="images/friends_pic.png";
friends_o=new Image();friends_o.src="images/friends_pic_o.png";
gallery_r=new Image();gallery_r.src="images/gallery_pic.png";
gallery_o=new Image();gallery_o.src="images/gallery_pic_o.png";
contact_r=new Image();contact_r.src="images/contact_pic.png";
contact_o=new Image();contact_o.src="images/contact_pic_o.png";
magazine_r=new Image();magazine_r.src="images/magazine_pic.png";
magazine_o=new Image();magazine_o.src="images/magazine_pic_o.png";
}
function in1(img,ref) { if (rollover == 'true') { document.images[img].src = ref; } } 
function out1(img,ref) { if (rollover == 'true') { document.images[img].src = ref; } }