var str5 = "";
function contentGalerij(str1,str2,str3,str4) {
  str5=str1;
  var url = "ajax_galerij.php";
  xmlhttp=null;
  if (window.XMLHttpRequest)
  {// code for Firefox, Opera, IE7, etc.
    xmlhttp=new XMLHttpRequest();
  }
  else if (window.ActiveXObject)
  {// code for IE6, IE5
    xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  }
  if (xmlhttp!=null)
  {
    xmlhttp.onreadystatechange=state_ChangeGalerij;
    xmlhttp.open("POST",url,true);
    xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded"); 
    xmlhttp.send("action="+str1+"&id_galerij="+str2+"&id_foto="+str3+str4); 
  }
  else
  {
    alert("Your browser does not support XMLHTTP.");
  }
}
 
function state_ChangeGalerij()
{
  if (xmlhttp.readyState==4)
  {// 4 = "loaded"
    if (xmlhttp.status==200)
    {// 200 = "OK"
      var str4 = xmlhttp.responseText;
	if (str5=="gallery_index" || str5=="foto" ) {
       document.getElementById('column_r').style.display = "none";
     	 document.getElementById('column_l').style.width = "750px";

	} else {
     	 document.getElementById('column_l').style.width = "577px";
       document.getElementById('column_r').style.display = "block";
	}
      document.getElementById('column_l').innerHTML = str4;
    }
    else
      {
      alert("Problem retrieving data:" + xmlhttp.statusText);
    }
  }
}