function switchProductPhoto(sourcePhoto) {
  document.getElementById("largethumbnail").src = sourcePhoto;
  //document.getElementById("largethumbnail").parentElement.href = sourcePhoto;
}

function switchInfoTab(sourceTab) {
  document.getElementById("tabspecslink").className="";
  document.getElementById("tabquestionslink").className="";
  document.getElementById(sourceTab + "link").className="active";
  document.getElementById("tabspecs").style.display="none";
  document.getElementById("tabquestions").style.display="none";
  document.getElementById(sourceTab).style.display="block";
}