var DHTML = (document.getElementById || document.all); //geen Netscape 4
var screensize = 0; //geeft drie schermformaten weer: 800, 1024 en 1280
var vultekst=""; //tekst die in het te vullen gedeelte moet
var complete_wissel_image_string ="";
var tmpstr;

//functions

function show(name)
{
	if (!DHTML) return;
	{
		var x = getObj(name);
		x.visibility = 'visible';
	}
}

function hide(name)
{
	if (!DHTML) return;
	{
		var x = getObj(name);
		x.visibility = 'hidden';
	}
}

function getObj(name)
{
  if (document.getElementById)
  {
    return document.getElementById(name).style;
  }
  else if (document.all)
  {
    return document.all[name].style;
  }
  else return false;
}

function detectscreensize()
{
  if (screen.width >= 1280 && screen.height >= 800)
  {
    screensize = 1280;
  }
  else if (screen.width >= 1024 && screen.height >= 768)
  {
    screensize = 1024;
  }
  else
  {
    screensize = 800;
  }
}

function plaats_image(image,locatie)
{
  maak_image_string(image);
  document.getElementById(locatie).innerHTML = complete_wissel_image_string;
}

function maak_image_string(image)
{
  te_plaatsen_image = image;
  complete_wissel_image_string=String.fromCharCode(60)+'img src="'+te_plaatsen_image+'" />';
}

function plaats_tekst(tekstid,vulid)
{
  vultekst = document.getElementById(tekstid).innerHTML;
  document.getElementById(vulid).innerHTML = vultekst;
}

function opstart()
{
   document.bgColor='rgb(188,206,216)';	
}