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Snippet Metadata
Summary:	Javascript that will allow text box entry by selected key board keys ... Validation
Language:	HTML & Javascript
Author:	Greg Gamble
Author snippets RSS:
Culture:	en-US
Bytes:	638
Visual Studio 2005 Snippet:

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Code:

<html>
<head>
<script language='JavaScript'>
function checkKey(e) {
        var key = e.which || e.keyCode; // NS vs. IE
        // allow digits, decimal, tab, backspace, return
        if (
                        (       key != 8
                        && key != 9
                        && key != 13
                        && key != 46
                        )
                        && (key < 48 || key > 57)
        ) { return false; }
}
</script>
</head>
<body>
	<h3>type a number (decimals OK)</h3>
	<form>
		<input type='text' size='3' maxlength='4' name='num' onKeyPress='return checkKey(event);' />
	</form>
</body>
</html>

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