// Run when document is loaded
function switch1(div) {
if (document.getElementById('one')) {
var option=['one','two','three'];
for(var i=0; i<option.length; i++)
{ obj=document.getElementById(option[i]);
obj.style.display=(option[i]==div)? "block" : "none"; }
}
}
//
function switchImg(i){
document.images["jaren"].src = i;
}

    <!--

    if (document.images)
    {
      preload_image_object = new Image();
      // set image url
      image_url = new Array();
      image_url[0] = "/App/Resources/images/site/jaren/2010.png";
      image_url[1] = "/App/Resources/images/site/jaren/2011.png";
      image_url[2] = "/App/Resources/images/site/jaren/2012.png";
      image_url[3] = "/App/Resources/images/site/jaren/2013.png";
      image_url[4] = "/App/Resources/images/site/jaren/2014.png";
      image_url[5] = "/App/Resources/images/site/jaren/2015.png";
      image_url[6] = "/App/Resources/images/site/jaren/2016.png";
      image_url[7] = "/App/Resources/images/site/jaren/2017.png";
      image_url[8] = "/App/Resources/images/site/jaren/2018.png";
      image_url[9] = "/App/Resources/images/site/jaren/2019.png";
      image_url[10] = "/App/Resources/images/site/jaren/2020.png";

       var i = 0;
       for(i=0; i<=3; i++) 
         preload_image_object.src = image_url[i];
    }

    //-->

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}