<html>
<head>
<script language="JavaScript" type="text/javascript">
<!--
var ios = 0;
var aos = 0;
function insertOldSchool(theSel, newText, newValue)
{
if (theSel.length == 0) {
var newOpt1 = new Option(newText, newValue);
theSel.options[0] = newOpt1;
theSel.selectedIndex = 0;
} else if (theSel.selectedIndex != -1) {
var selText = new Array();
var selValues = new Array();
var selIsSel = new Array();
var newCount = -1;
var newSelected = -1;
var i;
for(i=0; i<theSel.length; i++)
{
newCount++;
if (newCount == theSel.selectedIndex) {
selText[newCount] = newText;
selValues[newCount] = newValue;
selIsSel[newCount] = false;
newCount++;
newSelected = newCount;
}
selText[newCount] = theSel.options[i].text;
selValues[newCount] = theSel.options[i].value;
selIsSel[newCount] = theSel.options[i].selected;
}
for(i=0; i<=newCount; i++)
{
var newOpt = new Option(selText[i], selValues[i]);
theSel.options[i] = newOpt;
theSel.options[i].selected = selIsSel[i];
}
}
}
function appendOldSchool(theSel, newText, newValue)
{
if (theSel.length == 0) {
var newOpt1 = new Option(newText, newValue);
theSel.options[0] = newOpt1;
theSel.selectedIndex = 0;
} else if (theSel.selectedIndex != -1) {
var selText = new Array();
var selValues = new Array();
var selIsSel = new Array();
var newCount = -1;
var newSelected = -1;
var i;
for(i=0; i<theSel.length; i++)
{
newCount++;
selText[newCount] = theSel.options[i].text;
selValues[newCount] = theSel.options[i].value;
selIsSel[newCount] = theSel.options[i].selected;
if (newCount == theSel.selectedIndex) {
newCount++;
selText[newCount] = newText;
selValues[newCount] = newValue;
selIsSel[newCount] = false;
newSelected = newCount - 1;
}
}
for(i=0; i<=newCount; i++)
{
var newOpt = new Option(selText[i], selValues[i]);
theSel.options[i] = newOpt;
theSel.options[i].selected = selIsSel[i];
}
}
}
function removeOldSchool(theSel)
{
var selIndex = theSel.selectedIndex;
if (selIndex != -1) {
for(i=theSel.length-1; i>=0; i--)
{
if(theSel.options[i].selected)
{
theSel.options[i] = null;
}
}
if (theSel.length > 0) {
theSel.selectedIndex = selIndex == 0 ? 0 : selIndex - 1;
}
}
}
//-->
</script>
</head>
<body>
<form>
<input type="button" value="Insert"
onclick="ios++; insertOldSchool(this.form.selos, 'Insert' + ios, 'insert' + ios);" />
<input type="button" value="Append"
onclick="aos++; appendOldSchool(this.form.selos, 'Append' + aos, 'append' + aos);" />
<input type="button" value="Remove"
onclick="removeOldSchool(this.form.selos);" />
<br />
<select name="selos" size="10" multiple="multiple">
</select>
</form>
</body>
</html>
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