SHARE THIS PAGE

JS & DOM Reference

Overview

JavaScript Objects

JS Array JS Boolean JS Date JS Math JS Number JS String JS RegExp JS Global

Browser Objects

Window Navigator Screen History Location

Core DOM Objects

DOM Node DOM NodeList DOM NamedNodeMap DOM Document DOM Element DOM Attr

HTML DOM Objects

DOM Document DOM Events DOM Elements
DOM Anchor DOM Area DOM Base DOM Body DOM Button DOM Form DOM Frame/IFrame DOM Frameset DOM Image DOM Input Button DOM Input Checkbox DOM Input File DOM Input Hidden DOM Input Password DOM Input Radio DOM Input Reset DOM Input Submit DOM Input Text DOM Link DOM Meta DOM Object DOM Option DOM Select DOM Style DOM Table DOM td / th DOM tr DOM Textarea

Radio form Property

Radio Object

Definition and Usage

The form property returns a reference to the form that contains the radio button.

This property returns a form object on success.

Syntax

radioObject.form

Browser Support

The form property is supported in all major browsers.

Example

Display the id of the form containing the radio buttons:

<html>
<head>
<script>
function displayResult()
{
var x=document.getElementById("red").form.id;
alert(x);
}
</script>
</head>
<body>

<form id="form1">
What color do you prefer?<br>
<input type="radio" name="colors" id="red">Red<br>
<input type="radio" name="colors" id="blue">Blue<br>
<input type="radio" name="colors" id="green">Green
</form>

<button type="button" onclick="displayResult()">Show id of container form</button>

</body>
</html>

Try it yourself »

Radio Object