Question: Bit of a strange question here i know.

but i wanted to know if some kind of standalone engine for javascript exists..

basically i want to test running of my javascript without having to load a web page...

Maybe it doesn't exist? Like some kind of ide where i can run commands directly without launching IE etc...

I have a great editor but it doesn't support that.. i still need to launch ie / firefxo

What i was thinking of some kind of standalone javascript engine existed that i could write my code here and make debugging a bit easier... and then copy to my webpage.

I know firebug exists but you can't specifically do what i am asking cna you?

Any ideas?

Answer: 
You can also try out Google Chrome's JavaScript engine, V8:  

<http://code.google.com/p/v8/>
[jslibs](http://code.google.com/p/jslibs/) is a good standalone JavaScript runtime based on Firefox's JavaScript engine.