var dp_cal_1,dp_cal_2,dp_cal_3;
window.onload = function () {
	dp_cal_1  = new Epoch('epoch_popupa','popup',document.getElementById('popup_container_1'));
	dp_cal_2  = new Epoch('epoch_popupb','popup',document.getElementById('popup_container_2'));	
	dp_cal_3  = new Epoch('epoch_popupc','popup',document.getElementById('popup_container_3'));	
};