if ( t < 12)
  document.write("Good Morning.  " )
else

if ( t > 17)
  document.write(" Good Evening.  ")
else
  document.write("Good Afternoon.  ")

if ( t < 1 )
	document.write ( " It is currently " + "12" + ":" )
else

if ( t < 13)
  document.write( " It is currently " + t  +  ":")
else
  document.write( " It is currently " + (+t -12)  + ":")

if (now.getMinutes () < 10 )
  document.write("0" + now.getMinutes () )
else
  document.write(+ now.getMinutes () )

if ( t < 12 )
  document.write(" a.m.  Your Time. ")
else
  document.write(" p.m.  Central Standard Time. ")