对于你的第二个问题
<script language="JavaScript">
<!--
function submit1(sign)
{
var types=document.alogon.type.options[document.alogon.type.selectedIndex].value;
if (document.alogon.name.value!="" && document.alogon.pass.value!="")
{
if (types!="1")
document.alogon.action="/member/logon.PHP";
else
document.alogon.action="http://expert.csdn.net/member/logon.PHP";
if(sign)
document.alogon.submit();
//return true;
}
else
{
if (document.alogon.name.value=="")
alert("请输入用户名!");
if (document.alogon.pass.value=="")
alert("请输入密码");
return false;
}
return true;
}
function GetMyPass()
{
if (document.alogon.name.value!="")
{
document.alogon.action="/member/getpass.PHP";
document.alogon.submit();
}
else
{
alert("请在姓名输入框里输入用户名或注册EMAIL!");
}
}
// -->
</script>这就是个客户端脚本
<form method="POST" action="" target="_blank" name="alogon" onsubmit="return submit1(false);">
<td bgcolor="#004d99"><font color="#FFFFFF">姓 名:</font>
<input type="text" name="name" size="7" class=FormText_1>
<font color="#FFFFFF">密 码:
<input type="password" name="pass" size="7" class=FormText_1>
</font>
<select name="type" class=FormText_1>
<option value="1" selected>我的论坛</option>
<option value="2">我的软件</option>
<option value="3">我的订单</option>
<option value="4">我的文档</option>
<option value="5">我的简历</option>
</select><INPUT TYPE="image" width=0 height=0>
<a href="" onclick="submit1(true);return false;"><font color="#FFFF33">进 入..</font></a>
<a href="/member/zc.asp" target="_blank"><font color="#FFFF33">[注 册]</font></a> <a href="javascript:GetMyPass()"><font color="#FFFF33">忘记密码</font>
</a></td>
</form>
<script language="JavaScript">
<!--
function submit1(sign)
{
var types=document.alogon.type.options[document.alogon.type.selectedIndex].value;
if (document.alogon.name.value!="" && document.alogon.pass.value!="")
{
if (types!="1")
document.alogon.action="/member/logon.PHP";
else
document.alogon.action="http://expert.csdn.net/member/logon.PHP";
if(sign)
document.alogon.submit();
//return true;
}
else
{
if (document.alogon.name.value=="")
alert("请输入用户名!");
if (document.alogon.pass.value=="")
alert("请输入密码");
return false;
}
return true;
}
function GetMyPass()
{
if (document.alogon.name.value!="")
{
document.alogon.action="/member/getpass.PHP";
document.alogon.submit();
}
else
{
alert("请在姓名输入框里输入用户名或注册EMAIL!");
}
}
// -->
</script>这就是个客户端脚本
<form method="POST" action="" target="_blank" name="alogon" onsubmit="return submit1(false);">
<td bgcolor="#004d99"><font color="#FFFFFF">姓 名:</font>
<input type="text" name="name" size="7" class=FormText_1>
<font color="#FFFFFF">密 码:
<input type="password" name="pass" size="7" class=FormText_1>
</font>
<select name="type" class=FormText_1>
<option value="1" selected>我的论坛</option>
<option value="2">我的软件</option>
<option value="3">我的订单</option>
<option value="4">我的文档</option>
<option value="5">我的简历</option>
</select><INPUT TYPE="image" width=0 height=0>
<a href="" onclick="submit1(true);return false;"><font color="#FFFF33">进 入..</font></a>
<a href="/member/zc.asp" target="_blank"><font color="#FFFF33">[注 册]</font></a> <a href="javascript:GetMyPass()"><font color="#FFFF33">忘记密码</font>
</a></td>
</form>
<!--
function process_data(theform)
{
if (theform.username.value == "")
{
alert("请输入用户名!");
theform.username.focus();
return false;
}
}
//-->
<form action="" method="" onsubmit="return process_data(this)>
<input type="text" name="username" />
</form>
<script language=javascript>
function a()
{
document.form1.action="...";
document.form1.target="bottomFrame";
document.form1.submit();
}
</script><form name="form1" action="" onsubmit="a()">
...
</form>