Making Javascript as fast as Lua with LuaJIT 2.0

[Edward]

While i understand JavaScript is an much heavier languages then lua,
could we get anymore performance with something similar to LuaJIT
engine?

[krtulmay]

Will Lua provide all the needed functions that is currently specified
for Javascript in browsers?

http://sputnik.googlelabs.com/
http://www.ecma-international.org/publications/standards/Ecma-262.htm
http://en.wikipedia.org/wiki/ECMAScript