/* Mouseover function for the calendar */
function calendar_mouseover(calendarID){
	/* Checks if there is an element with that id */
	if(document.getElementById(calendarID) != null){
		/* switches it to visible */
		document.getElementById(calendarID).style.display = "block";
	}
}

/* Mouseout function for the calendar */
function calendar_mouseout(calendarID){
	/* Checks if there is an element with that id */
	if(document.getElementById(calendarID) != null){
		/* switches it to invisible */
		document.getElementById(calendarID).style.display = "none";
	}
}