indy.asp

wanzhengban 完整版 wanzhengban 完整版

<SCRIPT LANGUAGE="JavaScript">
function checkmail()
{
 if(document.youjian.useremail.value.length!=0)
  {
    if (document.youjian.useremail.value.charAt(0)=="." ||        
         document.youjian.useremail.value.charAt(0)=="@"||       
         document.youjian.useremail.value.indexOf('@', 0) == -1 || 
         document.youjian.useremail.value.indexOf('.', 0) == -1 || 
         document.youjian.useremail.value.lastIndexOf("@")==document.youjian.useremail.value.length-1 || 
         document.youjian.useremail.value.lastIndexOf(".")==document.youjian.useremail.value.length-1)
     {
      alert("Email地址格式不正确！");
      document.youjian.useremail.focus();
      return false;
      }
   }
 else
  {
   alert("Email不能为空！");
   document.youjian.useremail.focus();
   return false;
   }
}
</script>
<table cellSpacing="0" cellPadding="0" border="0" width="171"><form name="youjian" method="post" action="dy.asp">
<tr><td align="center" height="8"></td></tr>
<tr><td align="center" background="img/dy.gif" height="79">
<table border="0" cellpadding="3" cellspacing="0"><tr><td height="15" colspan="2"></td></tr>
<tr><td align="right"><input name="useremail" size="12" class="input"></td>
<td><input name="submit" type="IMAGE" border="0" src="img/dybutton.gif" onClick="return checkmail();"></td>
</tr></table></td></tr></form></table>