改成这样就可以了:
<form action="../bbs/ish_do_reg.asp?action=save" method="post" name="formxxxx" id=formxxxx>
<input name="username" type="hidden" value=" <%=username%> " />
<input name="sex" type="hidden" value="1" />
<input name="psw" type="hidden" id="psw" value=" <%=password%> " />
<input name="pswc" type="hidden" id="pswc" value=" <%=password%> " />
<input type="hidden" name="quesion" value="我注册的邮箱" />
<input type="hidden" name="answer" value=" <%=email%> "/>
<input type="hidden" name="e_mail" value=" <%=email%> " />
<input type="hidden" name="chk_result" value=" <%=chk_result%> " />
<input type="hidden" name="return_page" value=" <%=return_page%> " />
<input type="hidden" name="pagefrom" value="668" />
<input type="hidden" name="submit" value="新用户注册" />
<input type=submit id=sub1 style="display:none">
</form>
<script>
document.getElementById('sub1').click();
</script>
<form action="../bbs/ish_do_reg.asp?action=save" method="post" name="formxxxx" id=formxxxx>
<input name="username" type="hidden" value=" <%=username%> " />
<input name="sex" type="hidden" value="1" />
<input name="psw" type="hidden" id="psw" value=" <%=password%> " />
<input name="pswc" type="hidden" id="pswc" value=" <%=password%> " />
<input type="hidden" name="quesion" value="我注册的邮箱" />
<input type="hidden" name="answer" value=" <%=email%> "/>
<input type="hidden" name="e_mail" value=" <%=email%> " />
<input type="hidden" name="chk_result" value=" <%=chk_result%> " />
<input type="hidden" name="return_page" value=" <%=return_page%> " />
<input type="hidden" name="pagefrom" value="668" />
<input type="hidden" name="submit" value="新用户注册" />
<input type=submit id=sub1 style="display:none">
</form>
<script>
document.getElementById('sub1').click();
</script>
改为
document.formxxxx.submit();
<form method="post" action="" name="form1">
<div></div>
<input type="button" value="Reset" onclick="sub();">
</form>
<script language="JavaScript">
/* <![CDATA[ */
function sub()
{
document.forms["form1"].action="http://www.baidu.com";
document.forms["form1"].submit();
}
/* ]]> */
</script>
</BODY>