Jquery 数字框, accept-only-digit
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>textbox to accept only numbers (digits)</title>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript">
<!--//---------------------------------+
// Developed by Roshan Bhattarai
// Visit http://roshanbh.com.np for this script and more.
// This notice MUST stay intact for legal use
// --------------------------------->
$(document).ready(function(){
//called when key is pressed in textbox
$("#quantity").keypress(function (e)
{
//if the letter is not digit then display error and don't type anything
if( e.which!=8 && e.which!=0 && (e.which<48 || e.which>57))
{
//display error message
$("#errmsg").html("Digits Only").show().fadeOut("slow");
return false;
}
});
});
</script>
</script>
<style type="text/css">
body {
font: 12px Verdana,Arial, Helvetica, sans-serif;
margin: 10px auto;
400px;
}
p { color:blue; }
#errmsg { color:red; }
</style>
</head>
<body>
<p>
The textbox below only accepts digits, Try typing alphabates
</p>
Quantity : <input type="text" name="quantity" id="quantity" /> <span id="errmsg"></span>
</body>
</html>