function stagecontrol(command,absolutex,absolutey,absolutez,absolutea) {
 
 var ajax=getAjax();
 
 if(command == "detailcatch"){
 	var result = document.getElementById("detail");
  }else {
  	var result = document.anchorsgetElementById("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)+"&x="+encodeURIComponent(absolutex)+"&y="+encodeURIComponent(absolutey)+"&z="+encodeURIComponent(absolutez)+"&a="+encodeURIComponent(absolutea),true);
      //document.getElementById("mid").innerHTML="absolutex="+absolutex+" absolutey="+absolutey;  	 
  	 }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; 
             }else {
               result.innerHTML = "HTTP transmission....";
            }
       }
  }
 }