How can we submit a form without a submit button?

IDofFormtag.submit(); for example: form1.submit();

we can submit it with button element in html use onclick attribute for example: <input type="button" value="Send" onClick="this.form.submit">

You can use the jQuery submit(form) method, this method populates all form inputs and submits the form without the need to actually add a submit button. Check it out here: http://api.jquery.com/submit/ Just keep in mind that this needs jQuery library, and won't work if JavaScript was disabled on the client browser.