Formatting Date Field

Hi,
I’m using the following script to display the current day, but it does not display in the format that I need. The date displays as: 11/07/2007. I need it to display as 110707.

Any suggestions on the code to have the results display in MMDDYY format?

Thanks!!

var today_date : Date = new Date();
var date_str:String = ((today_date.getMonth()+1)+"/"+today_date.getDate()+"/"+today_date.getFullYear());