function CheckForm(){if(document.thisForm.UserName.value==""){ alert("登陆帐号没有填写!"); document.thisForm.UserName.focus(); document.thisForm.UserName.select(); return false; }if(document.thisForm.PassWord.value=="") { alert("密码没有填写正确!"); document.thisForm.PassWord.focus(); document.thisForm.PassWord.select(); return false; }return true;}document.writeln("