Dynamic Print Date with Windows Login ID using Will Print

I use this code and it worked , I need to add the "Windows Login ID" with the print as " This document was printed on dd/mm/yyyy by User Name" Can you help in this to modify the code.

var inch = 54;

for (var p = 0; p < this.numPages; p++) {

var aRect = this.getPageBox( {nPage: p} );

aRect[1] = .5*inch;

aRect[3] = aRect[1] - 24; // and 24 points high

var f = this.addField("PrintField", "text", p, aRect )

1. f.delay = true;
2. f.textSize = 06;
3. f.textFont = font.Helv;
4. f.textColor = color.black;
5. f.alignment = "right";
6. f.readonly = true;
7. f.display = display.noView;
8. f.delay = false;

}

var myWillPrintScript = 'var f = this.getField("PrintField"); \r'

+ 'f.value = "Printed on " + util.printd("dd/mm/yyyy hh:MM tt", new Date()); \r';

1. this.setAction("WillPrint", myWillPrintScript);