function initPage()
{
	var popBox = document.getElementById("popup-reports");
	var openBox = document.getElementById("open-reports");
	var closeBox = document.getElementById("close-reports");
	
	var rpopBox = document.getElementById("popup-recensies");
	var ropenBox = document.getElementById("nav-recensies");
	var rcloseBox = document.getElementById("close-recensies");
	
	var calendarBtn = document.getElementById("btn");
	var calendar = document.getElementById("calendar");
	
	if ( popBox&&openBox&&closeBox )
	{
		openBox.onclick = function()
		{
			this.className = "closed";
			closeBox.className = "opened";
			popBox.className = "opened";
		}
		closeBox.onclick = function()
		{
			this.className = "closed";
			openBox.className = "opened";
			popBox.className = "closed";
		}
	}
	
	
	if ( rpopBox&&ropenBox&&rcloseBox )
	{
		ropenBox.onmouseover = function()
		{
			rpopBox.className = "opened";
		}
		rpopBox.onmouseover = function()
		{
			rpopBox.className = "opened";
		}
		
		rpopBox.onmouseout = function()
		{
			rpopBox.className = "closed";
		}
		ropenBox.onmouseout = function()
		{
			rpopBox.className = "closed";
		}
		
		
		
	}
	
	
	
	
	if ( calendarBtn )
	{
		calendarBtn.onclick = function()
		{
			if(calendar.className.indexOf("opened") == -1)
			{
				calendar.className = "opened";
			}
			else
			{
				calendar.className = "";
			}
		}
	}
}

if (window.addEventListener){
	window.addEventListener("load", initPage, false);
}
else if (window.attachEvent){
	window.attachEvent("onload", initPage);
}