var montharray=new Array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec")
function countup(d,m,yr){
var today=new Date()
var todayy=today.getYear()
if (todayy < 1000)
todayy+=1900
var todaym=today.getMonth()
var todayd=today.getDate()
var todaystring=montharray[todaym]+" "+todayd+", "+todayy
var paststring=montharray[m-1]+" "+d+", "+yr
var difference=(Math.round((Date.parse(todaystring)-Date.parse(paststring))/(24*60*60*1000))*1)
if (difference == 0){
difference+=" días"
document.write("Hoy tenemos subasta!")
}
difference=difference*-1;

if (difference<0){
difference=difference*-1;
if (difference==1)
difference+=" día"
else
difference+=" días"
document.write("La última subasta fue hace "+difference+"!");
} 
if (difference>0){
if (difference==1)
dif="Falta "+difference+" día"
else
dif="Faltan "+difference+" días"
document.write(dif+" para la próxima subasta!");
} 
}
countup(22,09,2010)