var muestra;
function makeArray(n){this.length = n;
for (i=1;i<=n;i++){this[i]=0;}
return this;}

function Muestrafecha() {
//arreglo de los meses
var meses = new makeArray(12);
meses[0]  = "01";
meses[1]  = "02";
meses[2]  = "03";
meses[3]  = "04";
meses[4]  = "05";
meses[5]  = "06";
meses[6]  = "07";
meses[7]  = "08";
meses[8]  = "09";
meses[9]  = "10";
meses[10] = "11";
meses[11] = "12";

var today = new Date();
var day   = today.getDate();
	if (day<10)
		day="0"+day;
var month = today.getMonth();
var year  = today.getYear();

if (year < 1000) {year += 1900; }

// mostrar la fecha
return(+day+"/"+meses[month]+"/"+year);
}