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JavaScript onclick Event
 Complete Event Reference
Definition and Usage
The onclick event occurs when an object gets clicked.
Syntax
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onclick="SomeJavaScriptCode"
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| Parameter |
Description |
| SomeJavaScriptCode |
Required. Specifies a JavaScript to be executed when the
event occurs. |
Supported by the following HTML tags:
<a>, <address>, <area>, <b>, <bdo>, <big>, <blockquote>,
<body>, <button>, <caption>, <cite>, <code>, <dd>, <dfn>,
<div>, <dl>, <dt>, <em>, <fieldset>, <form>, <h1> to <h6>,
<hr>, <i>, <img>, <input>, <kbd>, <label>, <legend>, <li>,
<map>, <object>, <ol>, <p>, <pre>, <samp>, <select>, <small>,
<span>, <strong>, <sub>, <sup>, <table>, <tbody>, <td>,
<textarea>, <tfoot>, <th>, <thead>, <tr>, <tt>, <ul>, <var>
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Supported by the following JavaScript objects:
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button, document, checkbox, link, radio, reset, submit
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Example
In this example the text in the first input field will be copied to the second
input field when a button is clicked:
<html>
<body>
Field1: <input type="text" id="field1" value="Hello World!">
<br />
Field2: <input type="text" id="field2">
<br /><br />
Click the button below to copy the content of Field1 to Field2.
<br />
<button onclick="document.getElementById('field2').value=
document.getElementById('field1').value">Copy Text</button>
</body>
</html>
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The output of the code above will be:
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Complete Event Reference
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