function check(){
        validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;
        strEmail = document.getElementById('newuser_email').value;

        if (strEmail.search(validRegExp) == -1)
        {
            alert('Skriv inn en gyldig epostadresse.');
            return false;
        }
        return true;
    }
function validSubmission(frm){
 el = document.getElementById("_newuser_email");
 if (!isEmail(el.value)) {
  alert("ikke gyldig epostadresse");
  el.focus();
  return false;
 } else {
  return true;
 }
 return false;
}
function goFigure(url) {
  window.open(url);
}