// JavaScript Document

function teacher_schedule(teacher,lang)
{
    
    var url = "/ajax/teacher_schedule.php?teacher="+teacher+"&lang="+lang;
    document.getElementById('main').innerHTML = '<div class="loader_main"><img src="/img/ajax-loader.gif" alt="ajax loader" /></div>';
    sendRequest_teacher_schedule(url);
}

function stateChanged_teacher_schedule()
{ 
  if (xmlHttp.readyState==4)
  { 
    document.getElementById('main').innerHTML=xmlHttp.responseText;
  }
}

function sendRequest_teacher_schedule(url)
{
    xmlHttp = createXMLHttpRequest();

    if (xmlHttp)
    {
        xmlHttp.onreadystatechange=stateChanged_teacher_schedule;
        xmlHttp.open("GET", url, true);
        xmlHttp.send("");

    }
}