I want to know its whole concept.that how it is easy in javascript but difficult in java

guys thanks a lot.

I can t make mind up between php or jsp or asp.net (asp.net only because of their awesome IDE otherwise I completely dislike them.

- I know basic php and some intermediate.
- CSS
- HTML
- Javascript

php seems to messy or something.

so which would choose php or jsp or asp.net

On myspace and on other sites- when i want to like click something or view all my online friends- or arrange my photos. it doens t work! it makes that noise and is like error on page- and it has something about javascript?
do i need to like update my javascript or whatever that is? and even like on yahoo it does that- when im trying to click to see a new answer- it wont let mee!
whatt is the problem?

That is- is it possible to write a script in JavaScript that opens a browser window- goes to some website with a form on it and fill out the form and submit it? If so- can someone point out to me where to start? Thanks

can someone help me download javascript i have tried but to no avail i am having probs with watchin vids on youtube one min it is ok then it keeps stickin my laptp is new and does nt have java i get the message about ihave java turned off or is old version b4 the vid has any one got a link 4 a free dwnload or any other advice thanks!