Today there are still limits in downloading files from the web server to the local browser.

Some tips:

a- as the browser can only make a limited number of requests at one time you have to limit them.
put all JS and CSS together in less files possible.

b- compress the code. this is a slight saving, but every kb helps especially if you consider the cost of bandwidth on a multi-user app

c- use sprites combining multiple images into a single image.
I still have to experiment with this option

d- put javascript files at the bottom; you will see the html/css/images much faster

e- download the yslow plugin for firefox to test and check some other features.

Bob Belderbos

Software Developer, Pythonista, Data Geek, Student of Life. About me