function checkSubmit(){var b=document.getElementById("readerEmail");var a=document.getElementById("readerPassword");var c=document.getElementById("relMessage");if(b.value==""||a.value==""){c.innerHTML="Email\u5730\u5740\u6216\u5bc6\u7801\u4e3a\u7a7a";return}c.innerHTML="";document.logoin.submit()}function keySubmit(){if(event.keyCode==13){checkSubmit()}};

