var xmlHttp
function increCounter(str)
{ 

xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  } 

var url="ajax/update_counter.php";
url=url+"?ids="+str;

xmlHttp.open("GET",url,true);
xmlHttp.send(null);

}

function increCounterVideo(str)
{ 

xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  } 
  
var url="ajax/update_counter_video.php";
url=url+"?ids="+str;

xmlHttp.open("GET",url,true);
xmlHttp.send(null);

}

function increCounterScreen(str)
{ 

xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  } 
  
var url="ajax/update_counter_screen.php";
url=url+"?ids="+str;

xmlHttp.open("GET",url,true);
xmlHttp.send(null);

}


function GetXmlHttpObject()
{
var xmlHttp=null;
try
  {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
  }
catch (e)
  {
  // Internet Explorer
  try
    {
    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
    }
  catch (e)
    {
    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
return xmlHttp;
}