Date format using Javascript

Date format mm / dd / yyyy. We can chage format also.

window.onload = function currentDate()

{

var today = new Date();

    var dd = today.getDate();

    var mm = today.getMonth()+1; //January is 0!

    var yyyy = today.getFullYear();

    if(dd<10 span="">

        dd='0'+dd

    }

    if(mm<10 span="">

        mm='0'+mm

    }

    var today = mm+'/'+dd+'/'+yyyy;

$("#datetoday").html(today);

}