JavaScript输入统制 _JavaScript

JavaScript输入控制
<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=gb2312">

<title>输入框控制</title>
<script>
function myKeyDown()
{
     var k=window.event.keyCode;
     if ((k==46)||(k==8)||(k==189)||(k==109)||(k==190)||(k==110)|| (k>=48 && k<=57)||(k>=96 && k<=105)||(k>=37 && k<=40))
     {}
     else if(k==13){
          window.event.keyCode = 9;
     }
     else{
          window.event.returnValue = false;
     }
}
</script>

</head>

<body>
<input type=text style="ime-mode: disabled" onkeydown="myKeyDown();"/>
</body>

</html>

注：特殊字符!@#$%^&*()没有限制