document.write ("<form action=\"/serve/logon.asp\" method=\"post\" Id=\"toplogon\" onsubmit=\"javascript:return checkFrm();\">");
document.write ("<TD width=51>用户名：</TD>");
document.write ("<TD width=89>");
document.write ("    <INPUT style=\"height:18;font-size:9pt;background-color:#EFEFEF;\" size=\"10\" name=\"UserName\" maxlength=\"20\">");
document.write ("</TD>");
document.write ("<TD width=40>密码：</TD>");
document.write ("<TD width=81>");
document.write ("    <INPUT style=\"height:18;font-size:9pt;background-color:#EFEFEF\" type=\"password\" size=\"10\" name=\"Password\">");
document.write ("</TD>");
document.write ("<TD width=98>");
document.write ("    <input type=\"submit\" name=\"logonSubmit\" style=\"cursor:hand\" value=\"登陆\" style=\"width:30;height:16;border:none;background-color:#EFEFEF\" onmouseover=\"javascript:this.style.color='orange'\" onmouseout=\"javascript:this.style.color='black'\">");
document.write ("</td>")
document.write ("</form>");
function checkFrm(){
  if (toplogon.UserName.value.length<1 || toplogon.Password.value.length<1) {alert ("正确填写用户名和密码！");return false;}
  else return true;
}