P-G: If you use Firefox, there is a neat add on called Hyperwords that has a decent translator. I use it quite often. It doesn't have every language, but it is very convenient. I simply highlight the text I want translated and a menu pops up, and I choose "translate" and it changes the highlighted text to the language I requested, right on the page. (No need to go to another website) It is certainly not perfect, but I, personally, am very happy with it.

You need to be using Firefox as your browser, however.