init :

js_State *ctx = js_newstate(NULL,NULL,JS_STRICT);
if (!ctx)
{
     printf("js_State init error.\n");
     exit(-1);
}
js_getglobal(ctx,"Object");
js_getproperty(ctx, -1, "prototype");
js_newuserdata(ctx,"jsState",new jsState(),0);
js_newcfunction(ctx,native_print,"print", 1 /*nargs*/);
js_setglobal(ctx,"print");
js_dostring(ctx,job_text.c_str());


void jsProcessor::native_print(js_State  *ctx)
{
    jsState *j = (jsState *)js_touserdata(ctx,0,"jsState");
    printf("%s\n",js_tostring(ctx, 1));
    js_pushundefined(ctx);
}