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<!DOCTYPE html> <html> <head> <script> var myWindow; function openWin() { myWindow = window.open("", "", "width=400, height=200"); myWindow.blur(); } function blurWin() { myWindow.blur(); } function focusWin() { myWindow.focus(); } </script> </head> <body> <input type="button" value="Open new window" onclick="openWin()"> <input type="button" value="Blur new window" onclick="blurWin()"> <input type="button" value="Focus new window" onclick="focusWin()"> </body> </html>
