document.write('<FORM action="http://user.chinaiiss.org/login.asp?action=chk" method="post" name="login" onSubmit="return checklogin()" target="_self" style="margin:0px; padding:0px;">帐号：<INPUT type=text name=username size=9>&nbsp;密码：<INPUT type=password name=password size=9>&nbsp;<INPUT type=submit value="登 录" name=B2>&nbsp;<INPUT type=button onClick="reg()" value="注 册" name=B3 ></FORM>')

function reg(){
   window.open("http://user.chinaiiss.org/register.asp","reg","");
}
function checklogin(){
  if(document.login.username.value==''){
     alert("用户名不能为空！");
	 return false;
  }else if(document.login.password.value==''){
     alert("密码不能为空！");
	 return false;
  }
}

function loaduser(){
}