document.writeln("<script language=javascript>");
document.writeln("function CheckFormUserLogin()");
document.writeln("{");
document.writeln("if(document.UserLogin.UserName.value==\"\")");
document.writeln("{");
document.writeln("alert(\"请输入用户名！\");");
document.writeln("document.UserLogin.UserName.focus();");
document.writeln("return false;");
document.writeln("}");
document.writeln("if(document.UserLogin.Passwd.value == \"\")");
document.writeln("{");
document.writeln("alert(\"请输入密码！\");");
document.writeln("document.UserLogin.Passwd.focus();");
document.writeln("return false;");
document.writeln("}");
document.writeln("if(document.UserLogin.verifycode.value == \"\")");
document.writeln("{");
document.writeln("alert(\"请输入验证码！\");");
document.writeln("document.UserLogin.verifycode.focus();");
document.writeln("return false;");
document.writeln("}");
document.writeln("}");
document.writeln("<\/script>");