1. Paste the first code into a new file, save it as: modify.html
2. Copy the coding into the HEAD of your HTML document
3. Add the last code into the BODY of your HTML document -->
<!-- STEP ONE: Paste the first code into a new file, save it as: modify.html -->
<html>
<head>
<script language="JavaScript">
Begin
<!--
// Add the selected items in the parent by calling method of parent
function addSelectedItemsToParent() {
self.opener.addToParentList(window.document.forms[0].destList);
window.close();
}
// Fill the selcted item list with the items already present in parent.
function fillInitialDestList() {
var destList = window.document.forms[0].destList;
var srcList = self.opener.window.document.forms[0].parentList;
for (var count = destList.options.length - 1; count >= 0; count--) {
destList.options[count] = null;
}
for(var i = 0; i < srcList.options.length; i++) {
if (srcList.options != null)
destList.options = new Option(srcList.options.text);
}
}
// Add the selected items from the source to destination list
function addSrcToDestList() {
destList = window.document.forms[0].destList;
srcList = window.document.forms[0].srcList;
var len = destList.length;
for(var i = 0; i < srcList.length; i++) {
if ((srcList.options != null) && (srcList.options.selected)) {
//Check if this value already exist in the destList or not
//if not then add it otherwise do not add it.
var found = false;
for(var count = 0; count < len; count++) {
if (destList.options[count] != null) {
if (srcList.options.text == destList.options[count].text) {
found = true;
break;
}
}
}
if (found != true) {
destList.options[len] = new Option(srcList.options.text);
len++;
}
}
}
}
// Deletes from the destination list.
function deleteFromDestList() {
var destList = window.document.forms[0].destList;
var len = destList.options.length;
for(var i = (len-1); i >= 0; i--) {
if ((destList.options != null) && (destList.options.selected == true)) {
destList.options = null;
}
}
}
// End -->
</SCRIPT>
</head>
<body onLoad="javascript:fillInitialDestList();">
<center>
<form method="POST">
<table bgcolor="#FFFFCC">
<tr>
<td bgcolor="#FFFFCC" width="74">Available</td>
<td bgcolor="#FFFFCC"> </td>
<td bgcolor="#FFFFCC" width="69">Selected</td>
</tr>
<tr>
<td bgcolor="#FFFFCC" width="85">
<select size="6" name="srcList" multiple>
<option value="1">Item 1
<option value="2">Item 2
<option value="3">Item 3
<option value="4">Item 4
<option value="5">Item 5
<option value="6">Item 6
</select>
</td>
<td bgcolor="#FFFFCC" width="74" align="center">
<input type="button" value=" >> " onClick="javascript:addSrcToDestList()">
<br><br>
<input type="button" value=" << " onclick="javascript:deleteFromDestList();">
</td>
<td bgcolor="#FFFFCC" width="69">
<select size="6" name="destList" multiple>
</select>
</td>
</tr>
<tr>
<td colspan=3 align="center">
<input type="button" value="Done" onClick = "javascript:addSelectedItemsToParent()">
</td>
</tr>
</table>
</form>
</body>
</html>
<!-- STEP TWO: Paste this code into the HEAD of your HTML document -->
<!-- Begin
function small_window(myurl) {
var newWindow;
var props = 'scrollBars=yes,resizable=yes,toolbar=no,menubar=no,location=no,directories=no,width=300,height=200';
newWindow = window.open(myurl, "Add_from_Src_to_Dest", props);
}
// Adds the list of selected items selected in the child
// window to its list. It is called by child window to do so.
function addToParentList(sourceList) {
destinationList = window.document.forms[0].parentList;
for(var count = destinationList.options.length - 1; count >= 0; count--) {
destinationList.options[count] = null;
}
for(var i = 0; i < sourceList.options.length; i++) {
if (sourceList.options != null)
destinationList.options = new Option(sourceList.options.text, sourceList.options.value );
}
}
// Marks all the items as selected for the submit button.
function selectList(sourceList) {
sourceList = window.document.forms[0].parentList;
for(var i = 0; i < sourceList.options.length; i++) {
if (sourceList.options != null)
sourceList.options.selected = true;
}
return true;
}
// Deletes the selected items of supplied list.
function deleteSelectedItemsFromList(sourceList) {
var maxCnt = sourceList.options.length;
for(var i = maxCnt - 1; i >= 0; i--) {
if ((sourceList.options != null) && (sourceList.options.selected == true)) {
sourceList.options = null;
}
}
}
// End -->
</script>
</HEAD>
<!-- STEP TWO: Copy this code into the BODY of your HTML document -->