Consider the path
 ./images/1.png

Here ./ means current directory..
ie. single dot in path refer to current directory .
similiarlly ../ refer to its parent directory .ie. two dots in path points to one directory back..

So how many back refernces are possible in a path. ie.is '.../' allowed .If so what is its meaning? . and also meaning of '..../'.
?
Also which is correct '..../' or '../../' for the parent directory of the pparent directory of current directory..
Please give me a tutorial on relative paths
Assume that i have access in every directory of the server...