function tabOnClick(ID)
{
	DisplayInfo();
	var oElement = null;

	for (var i = 0; i < tabs.length; i++)
	{
		oElement = document.getElementById(i);
		oElement.className = "tabOff";
	}

	oElement = document.getElementById(ID);
	oElement.className = "tabOn";

	var tab = tabs[ID].split("|");
	curtab=ID;
	
	divTabFrame.innerHTML = "<IFRAME SRC="+tab[1]+" CLASS='tabFrame'></IFRAME>";
	document.body.focus();
}

function tabLoad()
{
	var HTML = "";
	tabReload();
	HTML += "<P ALIGN="+tabAlign+">";
	for (var i = 0; i < tabs.length; i++)
	{
		var tab = tabs[i].split("|");
		HTML += "<INPUT TYPE='BUTTON' ID="+i+" CLASS='tabOff' VALUE="+tab[0]+" onClick='tabOnClick("+i+")'>&nbsp;";
	}

	divTabButtons.innerHTML = HTML;

	if(curtab==99)
	{
		for (var i = 0; i < tabs.length; i++)
		{
			var tab = tabs[i].split("|");
	
			if (tab[2] == "*")
			{
				divTabFrame.innerHTML = "<IFRAME SRC="+"kies_vlucht.html"+" CLASS='tabFrame'></IFRAME>";
//				tabOnClick(i);
				break;			
			}
			else (tab[2] == "@")
			{
				divTabFrame.innerHTML = "<IFRAME SRC="+"kies_samenspel.html"+" CLASS='tabFrame'></IFRAME>";
				break;			
			
			}
		}
	}
	else
	{
		tabOnClick(curtab);
	}
}

function getCookieVal(offset)
{
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1)
	endstr = document.cookie.length;
	return unescape(document.cookie.substring(offset, endstr));
}

function GetCookie(name)
{
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	while (i < clen)
	{
		var j = i + alen;
		if (document.cookie.substring(i, j) == arg)
			return getCookieVal (j);
		i = document.cookie.indexOf(" ", i) + 1;
		if (i == 0) 
		break; 
	}
	return null;
}

function SetCookie(name,value)
{
	var argv = SetCookie.arguments;
	var argc = SetCookie.arguments.length;
	var expires = (2 < argc) ? argv[2] : null;
	var path = (3 < argc) ? argv[3] : null;
	var domain = (4 < argc) ? argv[4] : null;
	var secure = (5 < argc) ? argv[5] : false;
	document.cookie = name + "=" + escape (value) +
	((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
	((path == null) ? "" : ("; path=" + path)) +
	((domain == null) ? "" : ("; domain=" + domain)) +
	((secure == true) ? "; secure" : "");
}

function DisplayInfo()
{
/*	alert(GetCookie("CE_vlucht"));*/
}

function ResetCounts()
{
	var expdate = new Date();
	expdate.setTime(expdate.getTime() +  (24 * 60 * 60 * 1000 * 365)); 
	SetCookie("CE_vlucht", vluchtno, expdate , "/", null, false);
	history.go(0);
}