Better way to write this (i.e. without the eval() statement)?

[jonlb]

Hi,

I was wondering if anyone could give me a better way to write the
below class?  I'm guessing you will be able to tell the intent from
the code...

<code>
Sgd.Ui.Factory = new Class({

        Implements: [Events, Options],

        options:{},

        list: null,

        initialize: function(options){
                this.setOptions(options);
                this.list = new Hash();
        },

        registerType: function(type,klass){
                this.list.set(type,klass);
        },

        get: function(options){
                if ($defined(options.type) && this.list.has(options.type)) {
                        klass = this.list.get(options.type);
                        str = 'new '+klass+'('+JSON.encode(options)+')';
                        obj = eval(str);
                        return obj;
                } else {
                        return null;
                }
        }
});

</code>

Thanks in advance for any help!

jonlb