//Kleur verander functie
function changecss(theClass,element,value) {
  var cssRules;
  if (document.all) {
    cssRules = 'rules';
  } else if (document.getElementById) {
    cssRules = 'cssRules';
  }
  for (var S = 0; S < document.styleSheets.length; S++){
    for (var R = 0; R < document.styleSheets[S][cssRules].length; R++) {
      if (document.styleSheets[S][cssRules][R].selectorText == theClass) {
        document.styleSheets[S][cssRules][R].style[element] = value;
//        document.styleSheets[S].setAttribute(element, value);
      }
    }
  }

}

function displayonoff(item) {
  if (item.style.display == "block")
    item.style.display = "none";
  else
    item.style.display = "block";
}

function loginsubmit(e) {
  if(window.event) { // IE
    keynum = e.keyCode;
  } else if(e.which) { // Netscape/Firefox/Opera
    keynum = e.which;
  }
  if (keynum==13) document.getElementById('aanmeldform').submit();
}