custom3 - function child or no child_FINAL

 //test for child pages used in main loop
function testchildren () {
   global $post;
    $childtest = get_pages('child_of='.$post->ID); //$children or $myvar
    if( count( $childtest ) != 0 )  {
        /* echo 'has NO children'; */
        return false;
        }
    else
        {
        /* echo 'has children'; */
        return true;
        }
}