var sending = false;
var http_request = false;
var status = 0;

function createReq() {
  http_request = false;

  if (window.XMLHttpRequest) { // Mozilla, Safari,...
    http_request = new XMLHttpRequest();
    if (http_request.overrideMimeType) {
      http_request.overrideMimeType('text/plain;charset=iso-8859-1');
    }
  } else if (window.ActiveXObject) { // IE
    try {
      http_request = new ActiveXObject("Msxml2.XMLHTTP");
  http_request.setRequestHeader("Content-Type", "text/html; charset=iso-8859-1");
    } catch (e) {
      try {
        http_request = new ActiveXObject("Microsoft.XMLHTTP");
  http_request.setRequestHeader("Content-Type", "text/html; charset=iso-8859-1");
      } catch (e) {}
    }
  }
  if (!http_request) {

    return false;
  }
}

// Div-Layer bei versch. Browsern mit Zugriff auf style
function div_ref_style (id) {
  if      (document.layers)         return document.layers[id];
  else if (document.all)            return document.all[id].style;
  else if (document.getElementById) return document.getElementById(id).style;
  else                              return null;
}
// Div-Layer bei versch. Browsern
function div_ref (id) {
  if      (document.layers)         return document.layers[id];         // NC 4
  else if (document.all)            return document.all[id];            // IE 4
  else if (document.getElementById) return document.getElementById(id); // DOM
  else                              return null;
}

function itemBox_more(id)
{
  if (sending==false)
  {
    sending = true;
    setTimeout('sending = false;', 10000);

    document.getElementById("span_moreinfo"+id).innerHTML = '<img src="img/icon_loading.png" class="icon"> <span style="color:gray;">bitte warten...</span>';

    createReq();
    http_request.open('GET', 'ajax/itembox_more.php?id='+id, true);
    http_request.setRequestHeader('Content-Type', 'text/xml');
    http_request.onreadystatechange = done_itemBox_more;
    http_request.send(null);

  }
}

function done_itemBox_more()
{
  if(http_request.readyState == 4)
  {
    var response = http_request.responseText;

    var erg = response.split('|');

    sending = false;

    if (erg[0]=="1")
    {
      document.getElementById("div_moretext"+erg[1]).innerHTML = erg[2];
      document.getElementById("span_moreinfo"+erg[1]).innerHTML = '';
    }

  }
}


function item_Click(id)
{
  if (sending==false)
  {
    sending = true;
    setTimeout('sending = false;', 10000);

    createReq();
    http_request.open('GET', 'ajax/item_click.php?id='+id, true);
    http_request.setRequestHeader('Content-Type', 'text/xml');
    http_request.onreadystatechange = done_item_click;
    http_request.send(null);

  }
}


function done_item_click()
{
  if(http_request.readyState == 4)
  {
    sending = false;
  }
}

function showGB()
{
  div_ref_style('gb_addentry').visibility = "visible";
  div_ref_style('gb_addentry').height = "auto";
}