[Class] defineLink [Description] 
define link
p r o c e d u r a l p a g e l i n k
f u n c t i o n l i n k
d e f i n e l i n k
g l o b a l v a r i a b l e l i n k
c l a s s l i n k
m e t h o d l i n k
t u t o r i a l l i n k