var NS = (navigator.appName == "Netscape");
var VERSION = parseInt(navigator.appVersion);
if (VERSION > 3) {
    document.write('<form title="Print this page"><input type="image" name="Print" src="graphics/print.gif" value="Print this Page" name="Print" onClick="printit()" alt="Printer friendly version" class=input_print></form>');        
}