This method selects the current text in a text input.
formElement.select();
<html> <head> <title>Prototype examples</title> <script type="text/javascript" src="/javascript/prototype.js"> </script> <script> function showResult() { var elem = $('searchbox'); Form.Element.select(elem) } </script> </head> <body> <p>Enter some value click the button to see the result.</p> <br /> <form id="example" action="#"> <fieldset> <div> <label for="searchbox">Search</label> <input id="searchbox" name="searchbox" type="text"> </div> <div <input value="Result" type="button" onclick="showResult();> </div> </fieldset> </form> </body> </html>
To understand it in better way you can Try it yourself.
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