var montharray=new Array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec")

		  function countup(yr,m,d)

		  {

			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)

			difference+=" días"

			document.write(""+difference+" desde la publicación de esta web")

		  }

		  countup(2004,05,01)