实例159.电子邮件发送程序.html

JSP网页中用到的JavaScript特效

<script language="JavaScript">
<!--
function validate_form() { 
  validity = true;                      
  if (!check_email(document.form.EMAIL.value))      
        { 
        validity = false; 
        alert('请填入正确Email地址。'); 
        }
  if (document.form.sub1.value == "")   
        { 
        validity = false; 
        alert('请输入留言主题。'); 
        }

  if (validity)                          
        alert ("谢谢你的来信." + "你所填的信息将以Email形式发送给我");
  document.form.action='mailto:'+document.form.EMAIL.value +'?subject='+document.form.sub1.value 
  return validity; 
}

function check_email(address) {
  if ((address == "") || (address.indexOf ('@') == -1) || (address.indexOf ('.') == -1))
      return false;
  return true;
}

// -->
</script>
<form name="form" method="post" enctype="text/plain" onSubmit="return validate_form()">
<table width="90%" border="0" cellspacing="0" cellpadding="0">
  <tr> 
    <td width="77%"> 
      <div align="left">
        <b><font size="3">收件地址: </font></b> 
        <input type="text" size=30 name="EMAIL">
        <br>
        <b><font size="3">留言主题: </font></b> 
        <input type="text" size=30 name="sub1">
        <br><font size="3"><b>姓名:</b></font> 
        <input type="text" size=30 name="NAME">
        <br>
        <b><font size="3">留言内容:</font></b><br>
        <textarea name="DESCRIPTION" rows=4 cols=40></textarea>
      </div>
    </td>
  </tr>
  <tr> 
    <td> <br>
        <input type="submit" name="submit" value="发送">
        <input type="reset" value="清除" name="reset">
    </td>
  </tr>
</table>
</form>