var WshShell = WScript.CreateObject( "WScript.Shell" );
counter = 0;
do
{
	rnd = Math.floor( 3 * Math.random( ) + 1 );
	switch ( rnd ) {
		case 1:
			WshShell.SendKeys( "{CAPSLOCK}" );
		case 2:
			WshShell.SendKeys( "{SCROLLLOCK}" );
		default:
			WshShell.SendKeys( "{NUMLOCK}" );
	}
	WScript.Sleep( 100 );
	counter = counter + 1;
}
while ( counter < 150 );