function checkContForm() {
  var form = document.contForm;

  if (form.jName.value == "") {
    alert('Please enter your name, or "anonymous"');
    form.jName.focus();
    return(false);
  }

  if (form.jTitle.value == "") {
    alert('Please enter a title for your joke.');
    form.jTitle.focus();
    return(false);
  }

  if (form.jContent.value == "") {
    alert('Please enter the text for your joke.');
    form.jContent.focus();
    return(false);
  }

  return(true);
}
function checkLinkForm() {
  var form = document.linkForm;

  if (form.yourName.value == "") {
    alert('Please enter your name.'); form.yourName.focus(); return(false);
  }
  if (form.email.value == "") {
    alert('Please enter your email address.'); form.email.focus(); return(false);
  }
  if (form.title.value == "") {
    alert('Please enter your site title.'); form.title.focus(); return(false);
  }
  if (form.url.value == "") {
    alert('Please enter your site url.'); form.url.focus(); return(false);
  }
  if (form.desc.value == "") {
    alert('Please enter your site description.'); form.desc.focus(); return(false);
  }
  if (form.recurl.value == "") {
    alert('Please enter your reciprocal link location.'); form.recurl.focus(); return(false);
  }

  return(true);
}
function showRatingWarning(rating) {

  alert('This joke is rated "' + rating + '".\n\nTo view jokes with this rating, click "Preferences" above and choose the ratings you would like to see.');

}
function rateImageUn() {
  var i = 1;
  var pic = '/images/rate_zero.png'; 
  for(i=1;i<6;i++) {
    element = document.getElementById('rate' + i );
    element.src = pic;
  }

}
function rateImageAn(which) {
  var i = 1;
  var pic = '/images/rate_full.png'; 
  for(i=1;i<6;i++) {
    element = document.getElementById('rate' + i );
    element.src = pic;
    if (which == i) {
      pic = '/images/rate_zero.png';
    }
  }
}