isMSIE = navigator.userAgent.indexOf("MSIE");
if (isMSIE > 0) {
    Version = parseInt(navigator.userAgent.substring(isMSIE + 5, isMSIE + 6));
}
else {
    Version  = parseInt(navigator.appVersion);
}

if ( (Version >= 5) || ( (Version >= 4) && (navigator.appName == "Netscape"))) {
      document.write('<A HREF="javascript:self.print()"><IMG SRC="images/print.jpg" ALT="Print" BORDER="0"></A>');
}
else {
      document.write('&nbsp;');
}