(document.getElementById) ? dom = true : dom = false;

function hideIt(fokus) {
  if (dom) {location.href='?fokus='+fokus+'&hideSubscribe=yes';}
}

function showIt() {
  if (dom) {document.getElementById("layer1").style.visibility='visible';}
}

function placeIt() {
  var myWidth = 0, myHeight = 0;
  if( typeof( window.innerWidth ) == 'number' ) {
    //Non-IE
    myWidth = window.innerWidth;
    myHeight = window.innerHeight;
  } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) {
    //IE 6+ in 'standards compliant mode'
    myWidth = document.documentElement.clientWidth;
    myHeight = document.documentElement.clientHeight;
  } else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
    //IE 4 compatible
    myWidth = document.body.clientWidth;
    myHeight = document.body.clientHeight;
  }
  myWidth = (myWidth / 2) - 40;
  myHeight = 210;

  if (dom && !document.all) {document.getElementById("layer1").style.top = myHeight + "px";}
  if (document.all) {document.all["layer1"].style.top = myHeight + "px";}
  if (dom && !document.all) {document.getElementById("layer1").style.left = myWidth + "px";}
  if (document.all) {document.all["layer1"].style.left = myWidth + "px";}
  window.setTimeout("placeIt()", 10); }