http = getHTTPObject();

function getHTTPObject(){
  var xmlhttp;

  /*@cc_on

  @if (@_jscript_version >= 5)
    try {
      xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
    }catch(e){
      try{
      xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
    }catch(E){
      xmlhttp = false;
    }
  }
  @else
    xmlhttp = false;
  @end @*/

  if(!xmlhttp && typeof XMLHttpRequest != 'undefined'){
    try {
      xmlhttp = new XMLHttpRequest();
    }catch(e){
      xmlhttp = false;
    }
  }

  return xmlhttp;
}


function doMySelection(url){
//  var url = baseURI + "backend.php?op=" + document.getElementById('op').value;
//  url += "&num1=" + document.getElementById('num1').value;
//  url += "&num2=" + document.getElementById('num2').value;

  http.open("GET", url, true);
  http.onreadystatechange = handleHttpResponse;

  http.send(null);
}

function handleHttpResponse(){
  if(http.readyState == 4){
      var str = http.responseText;
      var rsp = eval('('+str+')');
      var objectName = rsp.objectname;
      var isSelected = rsp.isSelected;
      var baseURL = rsp.baseURL;

      var spanEle = document.getElementById(objectName + "span");
      if(spanEle != null) {
          if(isSelected == "true") {
              spanEle.className = "item added";
          }
          else {
              spanEle.className = "item";
          }
      }

      var linkEle = document.getElementById(objectName + "link");
      if(linkEle != null) {
          if(isSelected == "true") {
              linkEle.innerHTML = "<img src='" + baseURL + "/images/btn_remove.gif' alt='Remove from My Selections' title='- Remove from My Selections' />";
          }
          else {
              linkEle.innerHTML = "<img src='" + baseURL + "/images/btn_add.gif' alt='Add to My Selections' title='+ Add to My Selections' />";
          }
      }

      var iconImageEle = document.getElementById(objectName + "iconimage");
      if(iconImageEle != null) {
          if(isSelected == "true") {
              iconImageEle.src = baseURL + "/images/icon_remove.gif";
              iconImageEle.alt = "Remove from My Selections";
              iconImageEle.title = "Remove from My Selections";
          }
          else {
              iconImageEle.src = baseURL + "/images/icon_add.gif";
              iconImageEle.alt = "Add to My Selections";
              iconImageEle.title = "Add to My Selections";
          }
      }

      var iconTextEle = document.getElementById(objectName + "icontext");
      if(iconTextEle != null) {
          if(isSelected == "true") {
              iconTextEle.textContent = "Remove from My Selections";
          }
          else {
              iconTextEle.textContent = "Add to My Selections";
          }
      }

      var mySelectionSpan = document.getElementById(objectName + "myselSpan");
      if(mySelectionSpan != null) {
          mySelectionSpan.parentNode.removeChild(mySelectionSpan);

      }


      //    document.getElementById('answer').innerHTML = http.responseText;
  }
}