var d = new Date();
dom = d.getDate();
month = d.getMonth() + 1;
year = d.getYear();
if (year < 2000) year = year - 100;
else year = year - 2000;

if (year == 8 && month == 8) 
    days = 20 + (31 - dom);
	else if (year == 8 && month == 9 && dom < 20)
	    days = 20 - dom;
		else
	          days = 0;
		    if (days < 10)
			 days = '0' + days.toString();

		document.write('<div align="center"><a href="http://softwarefreedomday.org/teams/centralandsouthamerica/Nicaragua"><img 
id="cuenta_atras" src="http://www.linuxtour.org/ContadorFlisol/Flisol-'+days+'.png" border="0" alt="Software Freedom Day 08 Nicaragua 
Pronto!!!"></a></div>');