<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title> New Document </title>
<meta name="Generator" content="EditPlus">
<meta name="Author" content="">
<meta name="Keywords" content="">
<meta name="Description" content="">
<script language="JavaScript">
<!--
function test(obj) {
var myReg = /^(\+|\-)?(\d+\.?\d*|\.\d+)$/;
if(!myReg.test(obj.value)) {
// obj.focus();
alert('false');
}
else {
alert('true');
}
}
//-->
</script>
</head>
<body>
<form method=post action="">
<input type="text" name="aaa">
<input type="button" onclick="test(aaa)" value="test">
</form>
</body>
</html>
