金额验证
<tr> <td> 合同金额<em>*</em> </td> <td> <asp:TextBox ID="txt_HeTongMoney" runat="server" Style="padding: 0 2px; width: 112px;" onKeyUp="if(isNaN(value))execCommand('undo')" onafterpaste="if(isNaN(value))execCommand('undo')" onblur="if(isNaN(value))execCommand('undo')" MaxLength="11" ToolTip="装饰合同中同甲方签订的最终金额"></asp:TextBox> 元 </td> </tr>