var cal1,cal2,cal3
window.onload = function() {

	if(document.getElementById('date')!=null){
		cal1 = new Epoch('date','popup',document.getElementById('date'));
	}
	if(document.getElementById('startdate')!=null){
		cal2 = new Epoch('startdate','popup',document.getElementById('startdate'));
	}
	if(document.getElementById('enddate')!=null){
		cal3 = new Epoch('enddate','popup',document.getElementById('enddate'));
	}
};