确认Email无法复制粘贴

<table><TR>
   <TD>&nbsp;* Email</TD>
   <TD><INPUT TYPE="text" NAME="Email" oncopy="return false;" oncut="return false;" class="formFieldStatic" size="30"></TD>
  </TR>
  <TR>
   <TD>&nbsp;* 确认Email</TD>
   <TD><INPUT TYPE="text" NAME="chkEmail" class="formFieldStatic" size="30"></TD>
  </TR>
</talbe>