the colour of today.

colorToday

$.fn.colorToday = function(property){
    var now = new Date(),
        color = '#',
        day = now.getDate(),
        month = now.getMonth() + 1,
        year = now.getFullYear().toString().slice(2);

    day < 10 && (day = '0' + day);
    month < 10 && (month = '0' + month);
    color += day.toString() + month.toString() + year;

    this.css(property || 'background-color', color);
}
    
$('body').colorToday();