JS/mscontrol.js

   1 function mscontrol(command,catchvalue) {
   2
   3  var ajax=getAjax();
   4
   5         if(command == "Brightnessset"){
   6         var result = document.getElementById("Brightness");
   7         }else if (command == "Voltageset") {
   8         var result = document.getElementById("Voltage");
   9         }else {
  10                 var result = document.getElementById("result");
  11         }
  12
  13         if (ajax) {
  14                  try{
  15                          ajax.onreadystatechange = getData;
  16                  }catch(e){
  17                         result.innerHTML="Onreadystate change error.";
  18                  }
  19
  20                  try{
  21                         ajax.open("GET","//localhost:8000/cgi-bin/vemclient.rb?command="+encodeURIComponent(command)+"&catchvalue="+encodeURIComponent(catchvalue),true);
  22                  }catch(e){
  23                         result.innerHTML = "ajax open error";
  24                  }
  25
  26                 try {
  27                          ajax.send(null);
  28                 }catch (e) {
  29                         result.innerHTML ="send error";
  30                 }
  31
  32         }else {
  33                 result.innerHTML = "you cannot use ajax....";
  34         }
  35
  36         function getData() {
  37                         if (ajax.readyState==4) {
  38                                         if (ajax.status==200) {
  39                                                          result.innerHTML = ajax.responseText;
  40                                                  }else {
  41                                                          result.innerHTML = "HTTP transmission....";
  42                                                 }
  43                          }
  44         }
  45  }