function isDisabled(date) {
		var MINUTE = 60 * 1000;
		var HOUR = 60 * MINUTE;
		var DAY = 24 * HOUR;
		var WEEK = 7 * DAY;
  		var today = new Date();
  		return (Math.round(date.getTime() - today.getTime()) / DAY) > 0;
	}
	function calcFecha1() {
		
		var fieldDia = document.getElementById("busq-img-dia");
		var fieldMes = document.getElementById("busq-img-mes");
		var fieldAnio = document.getElementById("busq-img-anio");
		fieldMes.value = (calendar.date.getMonth()+1);
		fieldAnio.value = calendar.date.getFullYear();
		fieldDia.value = calendar.date.getDate();
	};
	
	function calcFecha2() {
		
		var fieldDia = document.getElementById("busq-img-dia-hst");
		var fieldMes = document.getElementById("busq-img-mes-hst");
		var fieldAnio = document.getElementById("busq-img-anio-hst");
		fieldMes.value = (calendar.date.getMonth()+1);
		fieldAnio.value = calendar.date.getFullYear();
		fieldDia.value = calendar.date.getDate();
	};
	
	Calendar.setup({
	inputField : "busq-img-dia" , 
	ifFormat : "%d",
	button : "calendario1",
	align : "BL",
	singleClick : false,
	weekNumbers : false,
	dateStatusFunc : isDisabled,
	onSelect : calcFecha1
	
	});
	
	Calendar.setup({
	inputField : "busq-img-dia-hst" , 
	ifFormat : "%d",
	button : "calendario2",
	align : "BL",
	singleClick : false,
	weekNumbers : false,
	dateStatusFunc : isDisabled,
	onSelect : calcFecha2
	
	});