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javascript - how to auto select an input field and the text in it on page load

Upon page load I want to move the cursor to a particular field. No problem. But I also need to select and highlight the default value that is placed in that text field.

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From http://www.codeave.com/javascript/code.asp?u_log=7004:

var input = document.getElementById('myTextInput');
input.focus();
input.select();
<input id="myTextInput" value="Hello world!" />

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