browser = (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 3 )) || ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4)))
ie4 = ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 5 ))
ns4 = ((navigator.appName == "Netscape") && (parseInt(navigator.appVersion) >= 4.5 ))

if (browser){


prevon = new Image();
prevon.src = "img/print-prev_on.gif";
prevoff = new Image();
prevoff.src = "img/print-prev_off.gif";

nexton = new Image();
nexton.src = "img/print-next_on.gif";
nextoff = new Image();
nextoff.src = "img/print-next_off.gif";

sqon = new Image();
sqon.src = "img/print-square_on.gif";
sqoff = new Image();
sqoff.src = "img/print-square_off.gif";

}