var xmlHttp
var mediaid = 0;
var categoryid = 0;

function addToMylist(mediaid, categoryid)
{
    xmlHttp=GetXmlHttpObject()
    
    if (xmlHttp==null)
    {
          alert ("Your browser does not support AJAX!");
          return;
    }
    
    this.mediaid = mediaid;
    this.categoryid = categoryid;
       
    var url="ajax_mylist.php";
    url=url+"?MediaID="+mediaid;
    url=url+"&CategoryID="+categoryid; 
    url=url+"&sid="+Math.random();
    
    xmlHttp.onreadystatechange=stateChangedMylist;
    
    xmlHttp.open("GET",url,true);
    xmlHttp.send(null);
    
    
}

function removeFromMylist(mediaid, categoryid) {
    xmlHttp=GetXmlHttpObject()
    
    if (xmlHttp==null)
    {
          alert ("Your browser does not support AJAX!");
          return;
    }
    
    this.mediaid = mediaid;
    this.categoryid = categoryid;
       
    var url="ajax_mylist.php";
    url=url+"?MediaID="+mediaid;
    url=url+"&CategoryID="+categoryid;
    url=url+"&delete=true"; 
    url=url+"&sid="+Math.random();
    
    xmlHttp.onreadystatechange=stateChangedMylist;
    
    xmlHttp.open("GET",url,true);
    xmlHttp.send(null);   
} 

function stateChangedMylist() 
{ 
    if (xmlHttp.readyState==4)
    { 
        if(xmlHttp.responseText == "MylistStored") {
            document.getElementById("mylist"+mediaid).disabled=true;
            document.getElementById("mylist"+mediaid).value=" Done. ";
            document.getElementById("mediaid"+mediaid).style.background='#DFF1FF';
        }
        else if(xmlHttp.responseText == "Deleted") {
            document.getElementById("mylist"+mediaid).disabled=true;
            document.getElementById("mylist"+mediaid).value=" Done. ";
            document.getElementById("mediaid"+mediaid).style.background='#EDFFDF';
        }
        else {
            alert("Error:"+xmlHttp.responseText);
        }
    }
}

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;
}