/**
-------------------------------------------------------------------------------------------------
DIV-ek be- és kikapcsolása:
<div id='menu_01' style="display:block"><a href="javascript:bekapcs('menu_02')">Menü_02</a></div>
<div id='menu_02' style="display:none">Menü 02</div>
DIV be- és kikapcsolása flip-flop módszerrel:
<div id='menu_01' style="display:block"><a href="javascript:flipflop('menu_02')">Menü_02</a></div>
-------------------------------------------------------------------------------------------------
*/
function flipflop(id) {
	var style = document.getElementById(id).style;
	if (style.display == 'none') {
		var obj=document.getElementById(id);
		if(obj!=null) obj.style.display='';
	} else {
		var obj=document.getElementById(id);
		if(obj!=null) obj.style.display='none';
	}
}
function bekapcs(id) {
	var obj=document.getElementById(id);
	if(obj!=null) obj.style.display='';
}
function kikapcs(id) {
	var obj=document.getElementById(id);
	if(obj!=null) obj.style.display='none';
}


/**
-------------------------------------------------------------------------------------------------
Bal hasáb naptár box
-------------------------------------------------------------------------------------------------
*/
var actCalendarIndex = 0;
function SetCalendar(argIndex)
{
	actCalendarIndex = argIndex;
	var titleObj = document.getElementById('calendar_title');
	var eventObj = false;
	titleObj.innerHTML = arrMonthTitles[argIndex];
	for (i=0;i<arrMonths.length;i++){
		eventObj = document.getElementById('month'+arrMonths[i]);
		if (i==argIndex) eventObj.style.display = 'block';
		else eventObj.style.display = 'none';
	}
}


function PrevMonth()
{
	if (actCalendarIndex > 0) 
		SetCalendar(actCalendarIndex-1);
}

function NextMonth()
{
	if (actCalendarIndex < (arrMonths.length-1)) 
		SetCalendar(actCalendarIndex+1);
}