In the Java classes in Eclipse, you can right-click and go to the declaration of the Java method in a class (even if it is a different one.
In JSPs, this functionality is not available, even though MyEclipse does give you bubbletext showing you the class where Java reference this is located.
I feel that MyEclipse should at least jump you to the class if you right-click, seeing as it knows about this. Jumping directly to the method in that class would be even better.
Thanks,
Kevin.