HTML DOM id Property
 Complete Option Object Reference
Definition and Usage
The id property sets or returns the id of an option in a dropdown list.
Syntax
Example
The following example returns the id of the selected option in a dropdown
list:
<html>
<head>
<script type="text/javascript">
function alertOptionId()
{
var x=document.getElementById("mySelect").selectedIndex;
alert(document.getElementsByTagName("option")[x].id);
}
</script>
</head>
<body>
<form>
Select your favorite fruit:
<select id="mySelect">
<option id="apple">Apple</option>
<option id="orange">Orange</option>
<option id="pineapple">Pineapple</option>
<option id="banana">Banana</option>
</select>
<br /><br />
<input type="button" onclick="alertOptionId()"
value="Alert id">
</form>
</body>
</html>
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Try-It-Yourself Demos
Get the id of
the selected option in a dropdown list
Complete Option Object Reference
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