var prefix_id = 'cal_month_id_';
var calendar_last_id = null;

function show_month(month_id){
	if(calendar_last_id != null && calendar_last_id != month_id){
		close_month(calendar_last_id);
		calendar_last_id = null;
	}
	open_month(month_id);
	calendar_last_id = month_id;
}

function close_month(month_id){
	elem = document.getElementById(prefix_id + month_id);
	elem.style.display = 'none';
}
function open_month(month_id){
	elem = document.getElementById(prefix_id + month_id);
	elem.style.display = 'block';
}

function show_date_events(showDate){
	if (showDate==""){
	  document.getElementById("cont_info_cal").innerHTML="";
	  return;
	} 
	if (window.XMLHttpRequest){// code for IE7+, Firefox, Chrome, Opera, Safari
	  xmlhttp=new XMLHttpRequest();
	}else{// code for IE6, IE5
	  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
	}
	
	xmlhttp.onreadystatechange=function(){
		if (xmlhttp.readyState==4 && xmlhttp.status==200){
			document.getElementById("cont_info_cal").innerHTML=xmlhttp.responseText;
		}
	}
	
	if(document.getElementById("cont_info_cal").style.display != 'block'){
		document.getElementById("cont_info_cal").style.display = 'block';
	}
	
	xmlhttp.open("GET","spectacle_getinfo.php?dt="+showDate,true);
	document.getElementById("cont_info_cal").innerHTML="chargement...";
	xmlhttp.send();
}
function hide_date_events(){
	document.getElementById("cont_info_cal").style.display = 'none';
}