page loading speed optimalization

[Szoron]

I'm a beginner programmer web area.
The improvements include:
html : more than 4000 lines
js : more than 3000 lines
These two files contain everything except the php -mysql queries.
Therefore, the page loading more than 10 seconds.
It is true after all mejelenik panel immediately.
Roughly 40 navpanel was included in html .
1. Tip: The larger navpanel Kulu html to be put off .

Thus, accelerating the loading of 10 seconds to 4.5 seconds.

The images are optimized .

Thanks for the help!
Szoron