//functions.js
//Create a boolean variable to check for a valid IE instance.
var xmlhttp = false;
  //Check if we are using IE.
  try {
    //If the javascript version is greater than 5.
    xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
  } catch (e) {
    //If not, then use the older active x object.
    try {
      //If we are using IE.
      xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
    } catch (E) {
      //Else we must be using a non-IE browser.
      xmlhttp = false;
    }
  }
  //If we are using a non-IE browser, create a JavaScript instance of the object.
  if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
    xmlhttp = new XMLHttpRequest();
  }
  //A variable used to distinguish whether to open or close the calendar.
  var showCalendar = false;
  function showHideCalendar() {
    //The location we are loading the page into.
    var objID = "calendar";
    //Change the current image of the minus or plus.
    if (showCalendar == true){
      //Show the calendar.
document.getElementById(objID).innerHTML = "<meta content=text/html; charset=windows-1251><img src=http://kamchatka-online.com/wp-content/plugins/polls/images/loading.gif> Подождите, пожалуйста, идет загрузка...";
      document.getElementById("opencloseimg").src = "images/mins.gif";
      //The page we are loading.
      var serverPage = "we.php";
      //Set the open close tracker variable.
      showCalendar = false;
      var obj = document.getElementById(objID);
      xmlhttp.open("GET", serverPage);
      xmlhttp.onreadystatechange = function() {
      if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
        obj.innerHTML = xmlhttp.responseText;
      }
    }
    xmlhttp.send(null);
  } else {
    //Hide the calendar.
document.getElementById(objID).innerHTML = "<meta content=text/html; charset=windows-1251><img src=http://kamchatka-online.com/wp-content/plugins/polls/images/loading.gif> Подождите, пожалуйста, идет загрузка...";
    document.getElementById("opencloseimg").src = "images/plus.gif";
var serverPage = "gi.php";
    showCalendar = true;
    var obj = document.getElementById(objID);
      xmlhttp.open("GET", serverPage);
      xmlhttp.onreadystatechange = function() {
      if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
        obj.innerHTML = xmlhttp.responseText;
      }
    }
    xmlhttp.send(null);
  }
}