event.keyCode键码值表 附只能输入特定的字符串代码

<script language="javascript" type="text/javascript"> 
function onlyNum() 
{ 
if(!(event.keyCode==46)&&!(event.keyCode==8)&&!(event.keyCode==37)&&!(event.keyCode==39)&&!(event.keyCode==190)) 
if(!((event.keyCode>=48&&event.keyCode<=57)||(event.keyCode>=96&&event.keyCode<=105))) 
event.returnValue=false; //不让非数字显示 
} 
</script>

<asp:TextBox ID="TextBox1" runat="server" onkeydown="onlyNum();" style="ime-mode:Disabled"></asp:TextBox><br />

附JavaScript键码值表