//   Dette bibliotekt skal indeholde funktioner til at finde felter, aflæse feltværdier og validere felter
//      <script language="JavaScript" type="text/javascript" src="fieldLib.js"></script>
function getFrameAnonymous(field)   {
   switch (field.type)   {
      case 'text' : return getFrameValue(field); break;
      case 'textarea' : return getFrameValue(field); break;
      case 'checkbox' : return getFrameCheckbox(field); break;
      case 'radio' : return getFrameRadio(field); break;
      case 'select-one' : return getFrameSelect(field); break;
      case 'select-multiple' : return getFrameSelect(field); break;
      default : return '';
   }
};
function getAnonymous(fieldname)   {
   var field = getField(fieldname)
   switch (field.type)   {
      case 'text' : return getValue(fieldname); break;
      case 'textarea' : return getValue(fieldname); break;
      case 'checkbox' : return getCheckbox(fieldname); break;
      case 'radio' : return getRadio(fieldname); break;
      case 'select-one' : return getSelect(fieldname); break;
      case 'select-multiple' : return getSelect(fieldname); break;
      default : return '';
   }
};
function getFrameRadio(radio)  {
   var field;
   if (radio == undefined)
      return '';
   if (radio.length == undefined)   {   // only one option
      return getField(fieldname).value;
   }
   else   {
      for (var i = 0 ; i < radio.length ; i++)  {
         field = getField(fieldname + '[' + i + ']');
         if (field.checked)
            return field.value;
      }
   }
   return '';
};
function getRadio(fieldname)  {
   var field, radio = getField(fieldname);
   if (radio == undefined)
      return '';
   if (radio.length == undefined)   {   // only one option
      return getField(fieldname).value;
   }
   else   {
      for (var i = 0 ; i < radio.length ; i++)  {
         field = getField(fieldname + '[' + i + ']');
         if (field.checked)
            return field.value;
      }
   }
   return '';
};
function getFrameCheckbox(checkbox)   {
   result = new Array();
   var count, field;
   if (checkbox == undefined)
      return '';
   if (checkbox.length == undefined || checkbox.length == 1)   {
      if (checkbox.checked)
         return checkbox.value;
   }
   else  {
      count = 0;
      for (var i = 0 ; i < checkbox.length ; i++)   {
         field = getField(fieldname + '[' + i + ']');
         if (field.checked)   {
            result[count] = field.value;
            count++;
         }
      }
   }
   return result;
};
function getCheckbox(fieldname)   {
   result = new Array();
   var count, checkbox = getField(fieldname), field;
   if (checkbox == undefined)
      return '';
   if (checkbox.length == undefined || checkbox.length == 1)   {
      if (checkbox.checked)
         return checkbox.value;
   }
   else  {
      count = 0;
      for (var i = 0 ; i < checkbox.length ; i++)   {
         field = getField(fieldname + '[' + i + ']');
         if (field.checked)   {
            result[count] = field.value;
            count++;
         }
      }
   }
   return result;
};
function getFrameSelect(field)  {
   result = new Array();
   var index, count, index;
   if (field == undefined)
      return '';
   if (field.type == 'select-one')   {
      index = field.selectedIndex;
      if (field.options[index].value != '')
         return field.options[index].value;
      else
         return field.options[index].text;
   }
   else if (field.type == 'select-multiple')   {
      count = 0;
      for (var i = 0 ; i < field.length ; i++)   {
         if (field.options[i].selected)   {
            if (field.options[i].value != '')
               result[count] = field.options[i].value;
            else
               result[count] = field.options[i].text;
            count++;
         }
      }
      return result;
   }
   else
      return '';
};
function getSelect(fieldname)  {
   result = new Array();
   var index, count, field = getField(fieldname), index;
   if (field == undefined)
      return '';
   if (field.type == 'select-one')   {
      index = field.selectedIndex;
      if (field.options[index].value != '')
         return field.options[index].value;
      else
         return field.options[index].text;
   }
   else if (field.type == 'select-multiple')   {
      count = 0;
      for (var i = 0 ; i < field.length ; i++)   {
         if (field.options[i].selected)   {
            if (field.options[i].value != '')
               result[count] = field.options[i].value;
            else
               result[count] = field.options[i].text;
            count++;
         }
      }
      return result;
   }
   else
      return '';
};
function getFrameValue(field)   {
   if (field != undefined)
      return field.value;
   return '';
};
function getValue(fieldname)   {
   var field = getField(fieldname);
   if (field != undefined)
      return field.value;
   return '';
};
function setValue(fieldname, fieldvalue)   {
   var field = getField(fieldname);
   if (field != undefined)
      field.value = fieldvalue;
};
function toArray(values, separator)   {
   if (values == '')
      return new Array();
   return values.split(separator);
};
function getField(fieldname)   {
   var field;
   for (var i = 0 ; i < document.forms.length ; i++)   {
      field = eval('document.forms[' + i + '].' + fieldname);
      if (field != undefined)
         return field;
   }
   try   {
      for (var i = 0 ; i < window.opener.document.forms.length ; i++)   {
         field = eval('window.opener.document.forms[' + i + '].' + fieldname);
         if (field != undefined)
            return field;
      }
   }
   catch (e)   {
      return undefined;
   }
};
function getElement(id)   {
   var element = document.getElementById(id);
   if (element == null)
      return undefined;
   return element;
};
function getSelectByID(id)  {
   result = new Array();
   var index, count, field = getElement(id), index;
   if (field == undefined)
      return '';
   if (field.type == 'select-one')   {
      index = field.selectedIndex;
      if (field.options[index].value != '')
         return field.options[index].value;
      else
         return field.options[index].text;
   }
   else if (field.type == 'select-multiple')   {
      count = 0;
      for (var i = 0 ; i < field.length ; i++)   {
         if (field.options[i].selected)   {
            if (field.options[i].value != '')
               result[count] = field.options[i].value;
            else
               result[count] = field.options[i].text;
            count++;
         }
      }
      return result;
   }
   else
      return '';
};
function getCheckboxByID(id)   {
   result = new Array();
   var count, checkbox = getField(id), field;
   if (checkbox == undefined)
      return '';
   if (checkbox.length == undefined || checkbox.length == 1)   {
      if (checkbox.checked)
         return checkbox.value;
   }
   else  {
      count = 0;
      for (var i = 0 ; i < checkbox.length ; i++)   {
         field = getField(fieldname + '[' + i + ']');
         if (field.checked)   {
            result[count] = field.value;
            count++;
         }
      }
   }
   return result;
};
function getRadioByID(id)  {
   var field, radio = getField(id);
   if (radio == undefined)
      return '';
   if (radio.length == undefined)   {   // only one option
      return getField(fieldname).value;
   }
   else   {
      for (var i = 0 ; i < radio.length ; i++)  {
         field = getField(fieldname + '[' + i + ']');
         if (field.checked)
            return field.value;
      }
   }
   return '';
};