Learn the correct method to check and uncheck a checkbox in HTML5 using JavaScript or DOM manipulation.

You need to retrieve the checkbox before using it. Give the checkbox an id attribute to retrieve it with document.getElementById(..) and then check its current state.

<input type="checkbox" onclick="onClickHandler ()" onchange="onChangeHandler ()" /> From within onClickHandler and/or onChangeHandler, how can I determine what is the new state of …

17 Note that setting the checked content attribute (as opposed to the IDL attribute set with Javascript) to a non-empty string, the checkbox is checked. So if you set the 'checked' content …

HTML checkboxes do have bad nature to send value to server only if checkbox is checked! That means that server script on other site must know in advance what are all possible checkboxes …

How can I change checkbox (input) border's style? I've put border:1px solid #1e5180 upon it, but in FireFox 3.5, nothing happens!

All these workarounds have led me to the conclusion that the HTML checkbox kind of sucks if you want to style it. As a forewarning, this isn't a CSS implementation.

<input type="checkbox" disabled="disabled" checked="checked"> Just add disabled="disabled" as an attribute. Edit to address the comments: If you want the data to be posted back, than a …

I have an HTML page with multiple checkboxes. I need one more checkbox by the name "select all". When I select this checkbox all checkboxes in the HTML page must be selected. How can …

I am trying to create a checkbox dynamically using following HTML/JavaScript. Any ideas why it doesn't work?