document.write("      <div id='login1'> ");document.write("       <div id='login_a'>用户登陆 >></div> ");document.write(" 	  <form name=login_frm action='/login.asp?action=login_chk' method=post  onsubmit='return login_true()'> ");document.write("       <ul> ");document.write("         <li>用户名： ");document.write("           <input name='username' type='text' size='15' maxlength='25' /> ");document.write("         </li> ");document.write("         <li>密&nbsp;&nbsp;码： ");document.write("           <input name='password' type='password' size='15' maxlength='25' /> ");document.write("        </li> ");document.write("         <li>&nbsp;&nbsp;<a href='javascript:kepu_login_true()'><img src='/images/user_login_button.gif' alt='' /></a>&nbsp;&nbsp;<a href='/register.asp'><img src='/images/user_register.gif' alt='' width='54' height='18' /></a></li> ");document.write("       </ul> ");document.write("   </form> ");document.write("     </div> ");
function kepu_login_true()
{
  var kepu_login=false;
  if (document.login_frm.username.value=="")
         { alert("请输入您在本站注册时的 用户名称 ！"); document.login_frm.username.focus(); }
  else    
         {
               if (document.login_frm.password.value=="")
                           { alert("请输入您在本站注册时的 登陆密码 ！"); document.login_frm.password.focus(); }
               else
                           {kepu_login=true;}
   }

  if (kepu_login){document.login_frm.submit();}
}