//AJAX BASE FUNCTIONALITY
  //=======================

  function createRequestObject()
  {
    var ro;
    var browser = navigator.appName;

    if (browser == "Microsoft Internet Explorer")
    {
      ro = new ActiveXObject("Microsoft.XMLHTTP");
    }
    else
    {
      ro = new XMLHttpRequest();
    }

    return ro;
  }

  var http = createRequestObject();
  var http_windowOnline = createRequestObject();
  var http_smIcons = createRequestObject();
  var http_userZoom = createRequestObject();

  function getHTML_LAM_user(id_user, id_photo, sex, old_user)
  {
    http_windowOnline.open('get', 'system/ajax_lam.asp?id_user=' + id_user + '&id_photo=' + id_photo + '&sex=' + sex + '&old_user=' + old_user);
    http_windowOnline.onreadystatechange = HR_LAM_main;
    http_windowOnline.send(null);
  }

  function getHTML_LAM_vote(id_user, vote, sex)
  {
    http_windowOnline.open('get', 'system/ajax_lamVote.asp?id_user=' + id_user + '&vote=' + vote + '&sex=' + sex);
    http_windowOnline.onreadystatechange = HR_LAM_main;
    http_windowOnline.send(null);
  }

  function getHTML_AJAX()
  {
    http_windowOnline.open('get', 'system/ajax.asp?action=getHTML_windowOnlineAJAX');
    http_windowOnline.onreadystatechange = HR_windowOnlineAJAX;
    http_windowOnline.send(null);

    http_smIcons.open('get', 'system/ajax.asp?action=getHTML_subMenuIconsAJAX');
    http_smIcons.onreadystatechange = HR_smIconsAJAX;
    http_smIcons.send(null);
  }

  function HR_windowOnlineAJAX()
  {
    if (http_windowOnline.readyState == 4)
    {
  	var response = http_windowOnline.responseText;
	
	if (response != '')
	{
  	  document.getElementById('windowOnlineAJAX').innerHTML = response;
	}
    }
  }

  function HR_windowGoogleSearchResults()
  {
    if (http_windowOnline.readyState == 4)
    {
  	var response = http_windowOnline.responseText;
	
	if (response != '')
	{
  	  document.getElementById('googleSearchResults').innerHTML = response;
	}
    }
  }

  function HR_smIconsAJAX()
  {
    if (http_smIcons.readyState == 4)
    {
  	var response = http_smIcons.responseText;
  	document.getElementById('smIconsAJAX_header').innerHTML = response;
      document.getElementById('smIconsAJAX_footer').innerHTML = response;
    }
  }

  function HR_LAM_main()
  {
    if (http_windowOnline.readyState == 4)
    {
  	var response = http_windowOnline.responseText;
	
	if (response != '')
	{
  	  document.getElementById('LAM_main').innerHTML = response;
	}
    }
  }

  function HR_categories()
  {
    if (http_windowOnline.readyState == 4)
    {
  	var response = http_windowOnline.responseText;
	
	if (response != '')
	{
  	  document.getElementById('categories').innerHTML = response;
	}
    }
  }

  function HR_userZoom()
  {
    if (http_userZoom.readyState == 4)
    {
  	var response = http_userZoom.responseText;
	
	if (response != '')
	{
  	  document.getElementById('userZoom').innerHTML = response;
	}
    }
  }

  //USER ZOOM/UNZOOM FUNCTIONALITY
  //==============================

  function getHTML_userZoom(id_user, id_photo, userName, age)
  { 
    var iWidth;
    var iHeight;

    if (self.innerWidth)
    {
	iWidth = self.innerWidth;
    }
    else if (document.documentElement && document.documentElement.clientWidth)
    {
	iWidth = document.documentElement.clientWidth;
    }
    else if (document.body)
    {
	iWidth = document.body.clientWidth;
    }

    iWidth = iWidth / 2;

    iWidth = document.body.scrollLeft + 10;
    iHeight = document.body.scrollTop + 10;    

    document.getElementById('userZoom').style.left=iWidth;
    document.getElementById('userZoom').style.top=iHeight;
    document.getElementById('userZoom').style.visibility='visible';

    http_userZoom.open('get', 'system/ajax_userZoom.asp?id_user=' + id_user + '&id_photo=' + id_photo + '&userName=' + userName + '&age=' + age + '&width=' + iWidth);
    http_userZoom.onreadystatechange = HR_userZoom;
    http_userZoom.send(null);
  }

  function userUnZoom()
  {    
    http_userZoom.open('get', 'system/emptyHTML.asp');
    http_userZoom.onreadystatechange = HR_userZoom;
    http_userZoom.send(null);

    document.getElementById('userZoom').style.visibility='hidden';
  }