http://www.c-sharpcorner.com/UploadFile/abhikumarvatsa/image-map-mouse-hover-effect-on-area-using-jquery/
유투브 예제 :
https://www.youtube.com/watch?v=olKD4nAE81A
http://stackoverflow.com/questions/12661124/how-to-apply-hovering-on-html-area-tag