import javax.script.*;

engine = new ScriptEngineManager().getEngineByName("javascript");

if (engine != null) {
    Bindings bindings = engine.getBindings(ScriptContext.ENGINE_SCOPE);
    bindings.put("game", mc);
    bindings.put("irc", irc);
    bindings.put("gui", gui);
    bindings.put("js", engine);
    bindings.put("mod", this);
}

try {
    Object value = engine.eval(input);

    if (value != null) {
        mod_ircchat.inst.gui.displaySystem(value.toString());
    }
} catch (Throwable e) {
    mod_ircchat.inst.gui.displaySystem("Error: "+e.getMessage());
}