Show 2 months of calendar at same time

Hello,

Is there a plugin or a quick hack / code snippet in order to show 2 months of the calendar at the same time in the calendar widget on a sidebar???

For example, the side bar is currently showing January calendar but I would like it to show January and February at the same time. And when February finally rows around it would show February and March at the same time. Please let me know what is necessary to facilitate this. Again, perhaps there is a plugin that can be used to make this work.

Please let me know if any of you have done this in the past.

Thanks,
Josh