var menuNumber=0;

function menu_open(id)
{	
	if(menuNumber) menuNumber.style.visibility = 'hidden';

	menuNumber = document.getElementById(id);
	menuNumber.style.visibility = 'visible';

}

function menu_close()
{
	if(menuNumber) menuNumber.style.visibility = 'hidden';
}

function changeDate(dateVal){
	var previous = document.getElementById("date").value;
	var cName = "";
	
	if(previous != ""){
		cName = document.getElementById(previous).className;
		
		if(cName !="normalEvent"){
			document.getElementById(previous).className = "paleTextCalendar";
		}
		else{
			document.getElementById(previous).className = "normalTextCalendar";
		}
		
		cName = document.getElementById(dateVal).className;
		
		if(cName !="normalTextCalendar"){
			document.getElementById(dateVal).className = "paleNormalEvent";
		}
		else{
			document.getElementById(dateVal).className = "normalEvent";
		}
	}
	else{
		cName = document.getElementById(dateVal).className;
		
		if(cName !="normalTextCalendar"){
			document.getElementById(dateVal).className = "paleNormalEvent";
		}
		else{
			document.getElementById(dateVal).className = "normalEvent";
		}
	}
	
	document.getElementById("date").value = dateVal;

}