[jQuery] Hi All... Greetings from me... sorry about my English... ?

Javascript is a client side sripting language so the web page user's computer will be running any commands/calculations your specify in you script. This of course means that if you put a ton of javascript on a page it has the potential to slow down the webpage depending on how it is implemented. Without seeing the actual code and testing it is not really possible to tell if your code is really slowing things down or not though.