function openPopWin(object, wname, width, height) {

 new_window = window.open(object,wname,
                          'width=' + width + ',height=' + height + ',toolbar=no,location=no,' +
                          'directories=no,status=yes,menubar=no,scrollbars=yes,resizable=yes');
}

function showPreview(text, width, height, pre) {

 prv_window = window.open('','preview',
                          'width=' + width + ',height=' + height + ',toolbar=no,location=no,' +
                          'directories=no,status=yes,menubar=no,scrollbars=yes,resizable=no');

 if (pre) { prv_window.document.write('<pre>'); }

 prv_window.document.write(text);

 if (pre) { prv_window.document.write('</pre>'); }

 prv_window.document.close();

 prv_window.focus();
}

function showhideDiv(helpID, showIn) {

 if (document.getElementById) {

  winHelp = document.getElementById(helpID);

 } else if (document.all) {

  winHelp = document.all[helpID];

 } else if (document.layers) {

  winHelp = document.layers[helpID];
 }

 if (winHelp.style.display == "none") {

  winHelp.style.display = "block";

 } else { winHelp.style.display = "none"; }

 if (!showIn) { winHelp.style.display = "none"; }
}

function showConfirm(confirmText) {

 return confirm(confirmText);
}

function writeAsHtml(divID, htmlCode) {

 if (document.getElementById) {

  winDiv = document.getElementById(divID);

 } else if (document.all) {

  winDiv = document.all[divID];

 } else if (document.layers) {

  winDiv = document.layers[divID];
 }

 winDiv.innerHTML = htmlCode;
}

function changeSelect(formPointer, method) {

 for (i = 0; i < formPointer.elements.length; i++) {

  oneElement = formPointer.elements[i];

  if (oneElement.type == 'checkbox') {

   if (method == 'all') {

    if (!oneElement.checked) { oneElement.checked = true; }
   }

   if (method == 'none') {

    if (oneElement.checked) { oneElement.checked = false; }
   }

   if (method == 'invert') {

    if (oneElement.checked) { oneElement.checked = false;
    } else { oneElement.checked = true; }
   }
  }
 }
}