Things to do

* split parse.c up into the three parts of the grammar
* switch from executable AST to compact bytecode
* bytecode JIT compiler
* add an argument converter, eg
	SEE_argconv(interp, argc, argv, "ofi|sa*b",
	   &obj, &floatv, &intv, &stringv, 
	   &asciibuf, sizeof asciibuf, &boolchar);
  and maybe a corresponding call:
	SEE_callv(interp, callableobj, "ofisab-",
	    obj, float, int, see_string, asciiptr, boolchar);


* Get rid of EXT1 and replace with real JavaScript version compat

    some resources at: http://www.swtech.com/script/javascript/diff/
    http://members.ozemail.com.au/~enigman/javascript/js_faq.html
    http://web.archive.org/web/20011014100919/http://www.webcoder.com/reference/2/

    JavaScript1.0->1.1 
	http://wp.netscape.com/eng/mozilla/3.0/handbook/javascript/newfunc.htm
		- new operators: typeof void
		- new objects: Array Boolean Function Number
		- new methods:
			Array.join(separator)
			Array.reverse()
			Array.sort(comparefunc)
			String.split([separator])
			Object.valueOf()
		- new properties:
			?.constructor
			?.prototype
			Number.MAX_VALUE
			Number.MIN_VALUE
			Number.NaN
			Number.NEGATIVE_INFINITY
			Number.POSITIVE_INFINITY