Print uden prompt

Hvordan kan det være at det her spørg en om man vil printe ud?

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var da = (document.all) ? 1 : 0;
var pr = (window.print) ? 1 : 0;
var mac = (navigator.userAgent.indexOf(\"Mac\") != -1);

function printPage(frame, arg) {
if (frame == window) {
printThis();
} else {
link = arg; // a global variable
printFrame(frame);
}
return false;
}

function printThis() {
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.\");
}
}

function printFrame(frame) {
if (pr && da) { // IE5
frame.focus();
window.print();
link.focus();
} else if (pr) { // NS4
frame.print();
} else if (da && !mac) { // IE4 (Windows)
frame.focus();
setTimeout(\"vbPrintPage(); link.focus();\", 100);
} else { // other browsers
alert(\"Sorry, your browser doesn\'t support this feature.\");
}
}

if (da && !pr && !mac) with (document) {
writeln(\'<OBJECT ID=\"WB\" WIDTH=\"0\" HEIGHT=\"0\" CLASSID=\"clsid:8856F961-340A-11D0-A96B-00C04FD705A2\"></OBJECT>\');
writeln(\'<\' + \'SCRIPT LANGUAGE=\"VBScript\">\');
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(\'<\' + \'/SCRIPT>\');
}

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/StufdBear