Javascript examples for DOM HTML Element:Input Checkbox
The form property returns the form object containing the checkbox.
This property is read only.
A reference to the form element containing the checkbox. If the checkbox is not in a form, null is returned
The following code shows how to get the id of the form containing the <input type="checkbox"> element:
<!DOCTYPE html> <html> <body> <form id="myForm"> Checkbox: <input type="checkbox" id="myCheck"> </form>// w ww .ja va 2 s. c om <button onclick="myFunction()">Test</button> <p id="demo"></p> <script> function myFunction() { var x = document.getElementById("myCheck").form.id; document.getElementById("demo").innerHTML = x; } </script> </body> </html>