function showHelp(){
  var left = document.getElementById('pageContent').offsetLeft;
  if ( navigator.userAgent.indexOf('MSIE') != -1 )
    document.getElementById('divHelp').style.posLeft = left + 300;
  else {
      left = left+945;
      document.getElementById('divHelp').style.left = left;
    }
  document.getElementById('divHelp').style.display="";
}

function hideHelp(){
  document.getElementById('divHelp').style.display="none";
}

function showAndHideElement(elt) {
  if (document.getElementById(elt).style.display=="none")
    document.getElementById(elt).style.display="";
  else
    document.getElementById(elt).style.display="none";
}

function copyAddress() {
  if (document.getElementById('addressCheckbox').checked == true) {
    document.getElementById('invoiceAddress1').value = document.getElementById('address1').value;
    document.getElementById('invoiceAddress2').value = document.getElementById('address2').value;
    document.getElementById('invoiceZipCode').value = document.getElementById('zipCode').value;
    document.getElementById('invoiceCity').value = document.getElementById('city').value;
    document.getElementById('invoiceCountry').value = document.getElementById('country').value;
  }
  else {
    document.getElementById('invoiceAddress1').value = "";
    document.getElementById('invoiceAddress2').value = "";
    document.getElementById('invoiceZipCode').value = "";
    document.getElementById('invoiceCity').value = "";
    document.getElementById('invoiceCountry').value = "";
  }
}

function uncheckCopy() {
  document.getElementById('addressCheckbox').checked = false;
}