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Prototype Form.Element activate() Method
This method gives focus to a form control and selects its contents if it is a text input.
This method is just a shortcut for focusing and selecting. Therefore, these are equivalent:
Form.Element.focus('myelement').select();
is equivalent to:
$('myelement').activate();
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Syntax:
Return Value :
- It returns an HTMLElement.
Example:
Following example will activate age fiels:
<html>
<head>
<title>Prototype examples</title>
<script type="text/javascript"
src="/javascript/prototype.js">
</script>
<script>
function showResult()
{
$('age').activate()
}
</script>
</head>
<body>
<p>Click the button to see the result.</p>
<br />
<form id="example" action="#" onsubmit="return false">
<fieldset><legend>User info</legend>
<div><label for="username">Username:</label>
<input name="username" id="username" value="Sai" type="text">
</div>
<div><label for="age">Age:</label>
<input name="age" id="age" value="23" size="3" type="text">
</div>
<div><label for="hobbies">Your hobbies :</label>
<select name="hobbies" id="hobbies" multiple="multiple">
<option>coding</option>
<option>swimming</option>
<option>hiking</option>
<option>drawing</option>
</select></div>
</fieldset>
</form>
<br />
<input type="button" value="Result" onclick="showResult();"/>
</body>
</html>
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To understand it in better way you can Try it yourself.
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