Just to ask the obvious..
did you change this line...
var heart = "http://www.your-web-site-address-here.com/where/you/put/it/heart.gif";
to reflect where you saved the heart.gif file to?
Yes.. I did.. I put my site adress and copyied the gif of the heart in properties from my photos files.. Thank u for responding to me.. ha ha have a good day!