var da = (document.all) ? 1 : 0;
var pr = (window.print) ? 1 : 0;
var mac = (navigator.userAgent.indexOf("Mac") != -1); 

function printPage() {
if (pr) // NS4, IE5
window.print()
else if (da && !mac) // IE4 (Windows)
vbPrintPage()
else // other browsers
alert("Sorry, your browser doesn't support this feature.");
return false;
}

if (da && !pr && !mac) with (document) {
writeln('');
writeln('');
writeln('Sub window_onunload');
writeln(' On Error Resume Next');
writeln(' Set WB = nothing');
writeln('End Sub');
writeln('Sub vbPrintPage');
writeln(' OLECMDID_PRINT = 6');
writeln(' OLECMDEXECOPT_DONTPROMPTUSER = 2');
writeln(' OLECMDEXECOPT_PROMPTUSER = 1');
writeln(' On Error Resume Next');
writeln(' WB.ExecWB OLECMDID_PRINT, OLECMDEXECOPT_DONTPROMPTUSER');
writeln('End Sub');
writeln('');
}
// JavaScript Document
