CHECKED Attribute | checked Property

Sets or retrieves whether the given check box or radio button is selected.

Syntax

HTML <ELEMENT CHECKED ... >

Scripting input.checked [ = bChecked ]

HTML	<ELEMENT CHECKED ... >
Scripting	input.checked [ = bChecked ]

Possible Values

false The control is not selected.

true The control is selected.

The property is read/write with a default value of false.

Remarks

Check boxes that are not selected do not return their values when the form is submitted.

Example

The following example demonstrates retrieving the checked property to fire an event.
Sample Code
<HEAD>
<SCRIPT>
function checkthis()
{
    if (oCheckbox.checked == true)
    {
        alert("It's got a check; now off to Microsoft!");
        window.open("http://www.microsoft.com");
    }
}
</SCRIPT> 
</HEAD>
<BODY>
Check here if you wish to go to Microsoft:
<INPUT ID=oCheckbox TYPE=checkbox onclick=checkthis()>
</BODY>
This feature requires Internet Explorer 4.0 or later. Click the icon below to install the latest version. Then reload this page to view the sample.

Applies To

INPUT TYPE=checkbox, INPUT TYPE=radio

false	The control is not selected.
true	The control is selected.