function tablas() {
  ampas.sort();
  for(i=0;i<ampas.length;i++){
    if (i%2==0) color = "class='par'";
    else color= "class='impar'";
    document.write('<tr '+color+'><td>');
    document.write('<a href="'+ampas[i][1]+'" target="_blank">'+ampas[i][0]+"</a>");
    document.write('</td>');
	document.write('<td>'+ampas[i][2]+'</td>');
    document.write('<td>'+ampas[i][3]+'</td></tr>');
  }
}