.tag Files
Relationship of Custom Tags to .tag Files
-  Custom tags require you to author complete Java classes
 -  JSP 2.0 introduces .tag files:
     
     -  Remove the need to write Java classes
     
 -  Do not remove need to write Java code fragments
     
 
 -  A .tag file is a JSP source file with additional directives and
     standard actions
 -  A complete .tag file corresponds in functionality to one
     SimpleTag and can be used as a custom tag on another JSP