$(function(){
	$(document.getElementById(tbDeliveryDate)).focus(function(e){
		displaycalendar();
	});
	$(document.getElementById(tbDeliveryDate)).click(function(e){
		displaycalendar();
	});
	$(document.getElementById(popupcalendar)).mouseleave(function(e){
		hidecalendar();
	});
});

function displaycalendar(){
	$(document.getElementById(popupcalendar)).show();
}

function hidecalendar(){
	$(document.getElementById(popupcalendar)).hide();
}