var helpPage=[
	'%nThere is Someone who can Help :::%n',
	'  use one of the following commands:',
	'  + useless ..... show something useless',
        '  + distance ..... show big list of cosmic distances',
	'  + clear .... clear the terminal',
	'  + exit ..... close the terminal (or press <ESC>)',
	'  + help ..... show this help page',
	'  //other input will be echoed to the terminal.',
	' '
];
 
 var useless=[
    '%nThis is the most important thing you will ever do.',
    ' '
 ];