function TemControl(command,parameter){

  var ajax = getAjax();

  if(command == "Connect"){
    var result = document.getElementById("connection");
  }else{
    var result = document.getElementById("result");
  }

  if(ajax){
    try{
      ajax.onreadystatechange = getData;
    }catch(e){
      result.innerHTML = "onreadystate change error";
    }

    try{
      ajax.open("GET","//localhost:8000/cgi-bin/vemclient.rb?command="+encodeURIComponent(command)+"&parameter="+encodeURIComponent(parameter),true);
    }catch(e){
      result.innerHTML = "ajax open error";
    }

    try{
      ajax.send(null);
    }catch(e){
      result.innerHTML = "send error";
    }
  }else{
    result.innerHTML = "you cannot use ajax...";
  }

  function getData(){
    if(ajax.readyState == 4){
      if(ajax.status == 200){
	result.innerHTML = ajax.responseText;
	if(ajax.responseText.match(/Control/i)){
	  a = ajax.responseText.split(" ");
	  alert(a[1]+a[2]);
	}
      }else{
	result.innerHTML = "HTTP error";
      }
    }else{
      result.innerHTML = "HTTP Transmission...";
    }
  }

}