var visibleNewsItem = -1; //-1 means no item is visible
function toggleVisibility(divId)
{                    
    var visible = document.getElementById('article_'+divId).style.display;
    if (visible == 'none') // see if the item should be shown or hidden
    {
        if (visibleNewsItem != -1)
        {
            //toggleVisibility(visibleNewsItem); //if other item is currently shown, first hide it
        }
        document.getElementById('article_'+divId).style.display = 'block';                        
        visibleNewsItem = divId;
        
        document.getElementById('title_'+divId).style.color = '#003366';
        document.getElementById('title_'+divId).style.fontSize = '12px';
        document.getElementById('title_'+divId).style.fontWeight = 'bold';
    }
    else
    {
        document.getElementById('article_'+divId).style.display = 'none';
        visibleNewsItem = -1;
        
        document.getElementById('title_'+divId).style.color = '#ff6600';
        document.getElementById('title_'+divId).style.fontSize = '11px';
        document.getElementById('title_'+divId).style.fontWeight = 'normal';
    }
}

/* Menu */
function setSelected(itemName)
{
   selectedItem = itemName;
   document.getElementById(itemName).src = '/images/vosbot-menuoranje.gif';               
}

function orangeImg(imgId)
{
	document.getElementById(imgId).src = '/images/vosbot-menuoranje.gif';
}

function greyImg(imgId)
{
	if (imgId != selectedItem)
	{
		document.getElementById(imgId).src = '/images/vosbot-menugrijs.gif';
	}
}
/* Menu */

/* Countdown */
function setcountdown(theyear,themonth,theday,thehour,themin,thesec){
  yr=theyear;mo=themonth;da=theday;hr=thehour;min=themin;sec=thesec
}

var countdownwidth='134px';
var countdownheight='35px';
var opentags='<span style="font-size:12px;">';
var closetags='</span>';

var montharray=new Array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec");
var crosscount='';

function start_countdown(){
  if (document.layers)
    document.countdownnsmain.visibility="show";
  else if (document.all||document.getElementById)
    crosscount=document.getElementById&&!document.all?document.getElementById("countdownie") : countdownie;
  countdown();
}

function countdown(){
  var today=new Date();
  var todayy=today.getYear();
  if (todayy < 1000)
    todayy+=1900;
  var todaym=today.getMonth();
  var todayd=today.getDate();
  var todayh=today.getHours();
  var todaymin=today.getMinutes();
  var todaysec=today.getSeconds();
  var todaystring=montharray[todaym]+" "+todayd+", "+todayy+" "+todayh+":"+todaymin+":"+todaysec;
  futurestring=montharray[mo-1]+" "+da+", "+yr+" "+hr+":"+min+":"+sec;
  dd=Date.parse(futurestring)-Date.parse(todaystring);
  dday=Math.floor(dd/(60*60*1000*24)*1);
  dhour=Math.floor((dd%(60*60*1000*24))/(60*60*1000)*1);
  dmin=Math.floor(((dd%(60*60*1000*24))%(60*60*1000))/(60*1000)*1);
  dsec=Math.floor((((dd%(60*60*1000*24))%(60*60*1000))%(60*1000))/1000*1);
  if(dday<=0&&dhour<=0&&dmin<=0&&dsec<=1&&todayd==da){
    if (document.layers){
      document.countdownnsmain.document.countdownnssub.document.write(opentags+message_on_occasion+closetags);
      document.countdownnsmain.document.countdownnssub.document.close();
    }
    else if (document.all||document.getElementById)
      crosscount.innerHTML=opentags+message_on_occasion+closetags;
    return;
  }
  else if (dday<=-1){
  if (document.layers){
    document.countdownnsmain.document.countdownnssub.document.write(opentags+message_on_occasion+closetags);
    document.countdownnsmain.document.countdownnssub.document.close();
  }
  else if (document.all||document.getElementById)
    crosscount.innerHTML=opentags+message_on_occasion+closetags;
  return;
  }
  else{
  if (document.layers){
    document.countdownnsmain.document.countdownnssub.document.write(opentags+dday+ " days, "+dhour+" hours, "+dmin+" minutes, and "+dsec+" seconds left until "+occasion+closetags);
    document.countdownnsmain.document.countdownnssub.document.close();
  }
  else if (document.all||document.getElementById)
      {                      
          crosscount.innerHTML=opentags+"Nog "+dday+ " dagen, "+dhour+" uren,<br /> "+dmin+" mins, "+dsec+" secs tot<br />"+link1+"<b>"+occasion+"</b>"+locatie+link2+closetags;
      }
  }
  setTimeout("countdown()",1000);
}

/* Countdown */