$(document).mousemove(function(e){
  $("#hand").css({
    top: (e.pageY - 55) + "px"
  });
});

$.fn.hoverToggle = function(target){
  this.mouseover(function(){
    $(target).show();
  }).mouseout(function(){
    $(target).hide();
  });
}

$(document).ready(function(){
  $('.pointer').hoverToggle("#warning");
  $('#title').hoverToggle("#enter");
});