// JavaScript Document
function makeStringFromSelect(selectCtrl) {
var i;
var j = 0;
var outlist = "";

for (i = 0; i < selectCtrl.options.length; i++) {
 if (j > 0) {
  outlist = outlist + ", ";
 }
 outlist = outlist + selectCtrl.options[i].value;
 j++;
}

return outlist;
}

function addItems(fromCtrl, toCtrl) {
var i;
var j;
var itemexists;
var nextitem;

// step through all items in fromCtrl
for (i = 0; i < fromCtrl.options.length; i++) {
 if (fromCtrl.options[i].selected) {
  // search toCtrl to see if duplicate
  j = 0;
  itemexists = false;
  while ((j < toCtrl.options.length) && (!(itemexists))) {
   if (toCtrl.options[j].value == fromCtrl.options[i].value) {
    itemexists = true;
    alert(fromCtrl.options[i].value + " found!");
   }
   j++;
  }
  if (!(itemexists)) {
   // add the item
   nextitem = toCtrl.options.length;
   toCtrl.options[nextitem] = new Option(fromCtrl.options[i].text);
   toCtrl.options[nextitem].value = fromCtrl.options[i].value;
  }
 }
}
}

function removeItems(fromCtrl) {
var i = 0;
var j;
var k = 0;

while (i < (fromCtrl.options.length - k)) {
 if (fromCtrl.options[i].selected) {
  // remove the item
  for (j = i; j < (fromCtrl.options.length - 1); j++) {
   fromCtrl.options[j].text = fromCtrl.options[j+1].text;
   fromCtrl.options[j].value = fromCtrl.options[j+1].value;
   fromCtrl.options[j].selected = fromCtrl.options[j+1].selected;
  }
  k++;
 } else {
  i++;
 }
}
for (i = 0; i < k; i++) {
 fromCtrl.options[fromCtrl.options.length - 1] = null;
}
}

function moveUpList(listField) {
  if ( listField.length == -1) {  // If the list is empty
     alert("There are no values which can be moved!");
  } else {
     var selected = listField.selectedIndex;
     if (selected == -1) {
        alert("You must select an entry to be moved!");
     } else {  // Something is selected 
        if ( listField.length == 0 ) {  // If there's only one in the list
           alert("There is only one entry!\nThe one entry will remain in place.");
        } else {  // There's more than one in the list, rearrange the list order
           if ( selected == 0 ) {
              alert("The first entry in the list cannot be moved up.");
           } else {
              // Get the text/value of the one directly above the hightlighted entry as
              // well as the highlighted entry; then flip them
              var moveText1 = listField[selected-1].text;
              var moveText2 = listField[selected].text;
              var moveValue1 = listField[selected-1].value;
              var moveValue2 = listField[selected].value;
              listField[selected].text = moveText1;
              listField[selected].value = moveValue1;
              listField[selected-1].text = moveText2;
              listField[selected-1].value = moveValue2;
              listField.selectedIndex = selected-1; // Select the one that was selected before
           }  // Ends the check for selecting one which can be moved
        }  // Ends the check for there only being one in the list to begin with
     }  // Ends the check for there being something selected
  }  // Ends the check for there being none in the list
}

function moveDownList(listField) {
  if ( listField.length == -1) {  // If the list is empty
     alert("There are no values which can be moved!");
  } else {
     var selected = listField.selectedIndex;
     if (selected == -1) {
        alert("You must select an entry to be moved!");
     } else {  // Something is selected 
        if ( listField.length == 0 ) {  // If there's only one in the list
           alert("There is only one entry!\nThe one entry will remain in place.");
        } else {  // There's more than one in the list, rearrange the list order
           if ( selected == listField.length-1 ) {
              alert("The last entry in the list cannot be moved down.");
           } else {
              // Get the text/value of the one directly below the hightlighted entry as
              // well as the highlighted entry; then flip them
              var moveText1 = listField[selected+1].text;
              var moveText2 = listField[selected].text;
              var moveValue1 = listField[selected+1].value;
              var moveValue2 = listField[selected].value;
              listField[selected].text = moveText1;
              listField[selected].value = moveValue1;
              listField[selected+1].text = moveText2;
              listField[selected+1].value = moveValue2;
              listField.selectedIndex = selected+1; // Select the one that was selected before
           }  // Ends the check for selecting one which can be moved
        }  // Ends the check for there only being one in the list to begin with
     }  // Ends the check for there being something selected
  }  // Ends the check for there being none in the list
}