// Creamos los triggers de calendario popup.
	window.addEvent("domready",function(){
		var arrCalendarios = $$(".calendario");
		arrCalendarios.each(function(elemento,indice){
			showCalendar(elemento.id.substring(3),elemento.id,"%d-%m-%Y");	
		});
	})

	function showCalendar(id, trigger, format) {
	  var d =  new Date();
      calendario = new Calendar({
              inputField: id,
              dateFormat: format,
			  trigger: trigger,
              bottomBar: false,
              min: d,
              onSelect: function() { this.hide(); }
      });
      return false;
    }