$(document).ready(function() {
  var w=449*;
  $('#calosc').css("width", w+"px");
  timer = setInterval('slide("left")', 3000);
  $(document).bind('keypress', function(e) {
  if(e.keyCode==37) {
    clearInterval(timer); slide('right');
  } else if(e.keyCode==39) {
    clearInterval(timer); slide('left');
  }
  });
});

function slide(where) {
  var scrollAmount = $('#calosc').width() - $('#calosc').parent().width();
  var currentPos = Math.abs(parseInt($('#calosc').css('left')));
  var Scroll = Math.floor($('#calosc').parent().width());  
  if(where == 'left' && (currentPos < scrollAmount-$('#calosc').parent().width()))
  {
   $('#calosc:not(:animated)').animate({'left':'-=' + Scroll}, 'slow');
  }
  if(where == 'right' && currentPos != 0)
  {
   $('#calosc:not(:animated)').animate({'left':'+=' + Scroll}, 'slow');
  }       
}