document.write(" "); function frmlogin_onsubmit() { if (frmlogin.UsersName.value.replace(/ /g,"")=="") { alert("请输入帐号?"); frmlogin.UsersName.focus(); return false; } if (frmlogin.Password.value.replace(/ /g,"")=="") { alert("请输入密码!"); frmlogin.Password.focus(); return false; } if (frmlogin.VerifyCode.value.replace(/ /g,"")=="") { alert("请输入验证码!"); frmlogin.VerifyCode.focus(); return false; } return true; } function window_onload() { document.frmlogin.UsersName.focus(); } document.write("