Keypress function conditional

How can I combine these if statements to make this a little cleaner and be less repetitive?

$(document).keydown(function(e){
    if (e.keyCode == 38) {
        if($html.hasClass('client-loading') || canAnim === false) {
            return false;
        }
        var $prevProj = $('.project-current').prev('.project');
        $prevProj.click();
    }

    if (e.keyCode == 40) {
        if($html.hasClass('client-loading') || canAnim === false) {
            return false;
        }
        var $nextProj = $('.project-current').next('.project');
        $nextProj.click();
    }

    // Prevent rapid clicking
    if ( e.keyCode == 38 || e.keycode == 40 ) {
        canAnim = false;

        setTimeout(function(){
            canAnim = true;
        },2000);
    }
});

Here's another one, just for the heck of it

$(document).keydown(function (e) {
  var current;

  // return early
  if( e.keyCode !== 38 && e.keyCode !== 40 ) {
    return false;
  }

  // again, return early
  if( $html.hasClass('client-loading') || canAnim === false ) {
    return false;
  }

  current = $('.project-current');

  if( e.keyCode === 38 ) {
    current.prev('.project').click();
  }

  if( e.keyCode === 40 ) {
    current.next('.project').click();
  }

  canAnim = false;
  setTimeout(function () { canAnim = true; }, 2000);
});

StackExchange Code Review Q#18792, answer score: 2