📄 email2.htm
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<HTML>
<HEAD>
<TITLE>使用字符串</TITLE>
<SCRIPT LANGUAGE = "JavaScript">
function checkEmail( )
{
var strEmail=document.myform.txtEmail.value;
if (strEmail.length==0)
{
alert("电子邮件不能为空!");
return false;
}
if (strEmail.indexOf("@",0)==-1)
{
alert("电子邮件格式不正确\n必须包含@符号!");
document.myform.txtEmail.focus( );
document.myform.txtEmail.select( );
return false;
}
if (strEmail.indexOf(".",0)==-1)
{
alert("电子邮件格式不正确\n必须包含.符号!");
document.myform.txtEmail.focus( );
document.myform.txtEmail.select( );
return false;
}
return true;
}
function clearText( )
{
if (document.myform.txtEmail.value=="请输入真实的电子邮箱,我们将发送激活密码")
{
document.myform.txtEmail.value="" ;
document.myform.txtEmail.style.color="red";
}
}
</SCRIPT>
<STYLE type="text/css">
<!--
.textBorder {
border: 1px solid;
font-size:15px;
}
-->
</STYLE>
</HEAD>
<FORM name="myform" method="post" action="reg_success.htm" onSubmit="return checkEmail( )">
<P><IMG src="images/reg_back1.jpg" width="979" height="195"></P>
<P> </P>
<TABLE width="559" border="0" align="center">
<TR>
<TD>登录名:</TD>
<TD colspan="2"><INPUT name="txtUserName" type="text" class="textBorder" id="txtUserName" size="40"></TD>
</TR>
<TR>
<TD>您的电子邮件: </TD>
<TD colspan="2"><INPUT name="txtEmail" type="text" class="textBorder" id="txtEmail" value="请输入真实的电子邮箱,我们将发送激活密码" size="40" onFocus="clearText( )" style="color: #666666;">
*必填</TD>
</TR>
<TR>
<TD colspan="3" align="center"><P>
</P>
<P>
<INPUT name="clearButton" type="reset" id="clearButton" value=" 清 空 ">
<INPUT name="registerButton" type="submit" id="registerButton" value=" 注 册 " >
</P></TD>
</TR>
</TABLE>
<P> </P>
<P> </P>
<P> </P>
<P><IMG src="images/bottom.jpg" width="969" height="107" ></P>
<P> </P>
</FORM>
</HTML>
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