1) Script Title:
CHANGING IMAGE BY CLICK(EMERGENCY)
2) Script URL (on DD):
http://www.dynamicdrive.com/dynamicindex4/

3) Describe problem:
Need to do this mission for a beginners CIS project :

each time a user clicks on my id photo, the image is changed to my other photo.
VICE VERSA!!!

The two images that I am using are yada.jpg and yada2.jpg

PLEASE HELP. THANK YOU VERY MUCH IN ADVANCE!!!!!