It looks like a lot of websites make this..

http:// LINK / LINK / - without the .html thing..

But did they do what I did?

like creating a index.html inside a folder..

coz that needs people to download multiple times of images..

so.. is that a easier way to create

http://xxxxxx/xxx/ ?

Um....
well inside the folder create a index.html file which either shows content you want people to see, or make the index.html redirect to whereever you want it. if you type in http://xxxx/xxx/ this auto opens the index file anyway...

It looks like a lot of websites make this..

http:// LINK / LINK / - without the .html thing..

But did they do what I did?

like creating a index.html inside a folder..

coz that needs people to download multiple times of images..

so.. is that a easier way to create

http://xxxxxx/xxx/ ?

A lot of servers use mod_redirect plugin with apache.
If you are developing on an apache server read this website: http://www.workingwith.me.uk/articles/scripting/mod_rewrite

It deals with using the mod_rewrite function of .htaccess files.