<script type="text/javascript">   
   document.onmousemove = function(_event)   
   {   
   _event = _event || window.event;   
   var mouse_left = _event.clientX;   
   var mouse_top = _event.clientY;   
   $('#cursor_image').css({left: mouse_left + 15 + 'px', top: mouse_top + 15 + 'px'});   
   }   

   function heart_up() {   
   $('#cursor_image').css('width', 18 + 'px').css('height', 15 + 'px');   
   }   
   function heart_down() {   
   $('#cursor_image').css('width', 16 + 'px').css('height', 13 + 'px');   
   }   
   setInterval(heart_up, 200);   
   setInterval(heart_down, 300);   
   </script>   
   <style>   
   #cursor_image {position: absolute;width:18px;height:15px;z-index:15000;}   
   </style>   
   <img id="cursor_image" src="http://ucozua.ru/scripts-2012/2/heart.png" />