CODE
function data(){
var Today = new Date();
var Month = Today.getMonth();
var Day = Today.getDate();
var Year = Today.getFullYear();
if(Year <= 99) Year += 1900
var dat = ((Day < 10) ? "0" : ":") + Day;
dat += ((Month < 10) ? "-0" : ":") + Month;
dat += ("-") + Year;
document.getElementById('data').innerHTML='<span style="color: red;">' + dat + '</span>';
}