var vhtml='';
vhtml = vhtml+'<form class="nav_login" action="/erduauctions/login" method="post" name="toploginform" onsubmit="return checkTopLogin();" target="_top">';
vhtml = vhtml+'<input name="refer" type="hidden" value="http://2dupai.com/erdupai/slideshow/1734?">';
vhtml = vhtml+'用户名：<input name="user_login" id="user_login" type="text" value="请输入用户名" class="normalinput graytxt" onfocus="showInput(this)" onblur="showInput(this)" onclick="cleanKeyWord(\'请输入用户名\',\'user_login\')" autocomplete="off" style="width:80px;">';
vhtml = vhtml+'密码：<input name="user_password" id="user_password" type="password" class="normalinput graytxt" style="width:80px;">';
vhtml = vhtml+' <input type="submit" class="hdr_schbtn" name="submit" value="登录" style="width:40px;">';
vhtml = vhtml+' <input type="button" class="hdr_schbtn" name="submit" value="注册" style="width:40px;" onclick="return doTopRegistration();">';
vhtml = vhtml+'</form>';