function calendar_bg() {
document.getElementById('calendar_bg').style.height = document.body.scrollHeight  + 'px';
document.getElementById('calendar_bg').style.display = 'block';
document.getElementById('calendar_popup').style.display = 'block';
}
function popup_position(e) {

var posx = 0;
var posy = 0;
if (!e) var e = window.event;
if (e.pageX || e.pageY) {
				posx = e.pageX;
				posy = e.pageY;
}
else if (e.clientX || e.clientY) {
				posx = e.clientX + document.body.scrollLeft	+ document.documentElement.scrollLeft;
				posy = e.clientY + document.body.scrollTop + document.documentElement.scrollTop;
}
document.getElementById('calendar_popup').style.top = posy - 200 + 'px';
}
function close_popup(object) {
document.getElementById('calendar_bg').style.display = 'none';
document.getElementById('calendar_popup').style.display = 'none';
}
function pokazi(element) {
	if(document.getElementById(element).style.display == 'block'){
	document.getElementById(element).style.display = 'none';
	} else {
	document.getElementById(element).style.display = 'block';
	}
}