Kod
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="pl" lang="pl">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-2" />
</head>
<body>
<script type="text/javascript">
function zmiana()
{
var x=document.getElementById('zwierze').selectedIndex;
document.write(x);
}
</script>
<div style="display: block">
<select id="zwierze" onchange="zmiana()">
<option>mysz</option>
<option>kot</option>
<option>pies</option>
</select>
</div>
</body>
</html>
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="pl" lang="pl">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-2" />
</head>
<body>
<script type="text/javascript">
function zmiana()
{
var x=document.getElementById('zwierze').selectedIndex;
document.write(x);
}
</script>
<div style="display: block">
<select id="zwierze" onchange="zmiana()">
<option>mysz</option>
<option>kot</option>
<option>pies</option>
</select>
</div>
</body>
</html>