// JavaScript Document
var xmlhttp;
var id;

function showImage(img,width){
  document.image_loader.src="upload/pict/"+img;
  var image=new Image();
  image.src=document.image_loader.src;
  width=(width+30)+"px";
  document.getElementById("imageheader").style.width=width;
  document.getElementById("imagecenter").style.width=width;
  document.getElementById("imagetop").style.visibility="visible";
  document.getElementById("imageheader").style.visibility="visible";
  document.getElementById("imagecenter").style.visibility="visible";
}

function hideImage() {
  document.getElementById("imagetop").style.visibility="hidden";
  document.getElementById("imageheader").style.visibility="hidden";
  document.getElementById("imagecenter").style.visibility="hidden";
}

function hideAttachment(){
  document.getElementById("attachtop").style.visibility="hidden";
  document.getElementById("attachcenter").style.visibility="hidden";
  document.getElementById("attachheader").style.visibility="hidden";
  document.getElementById('loader').style.visibility = 'hidden';
}

function showAttachment(zu_id){
  document.getElementById("attachtop").style.visibility="visible";
  document.getElementById("attachcenter").style.visibility="visible";
 document.getElementById("attachheader").style.visibility="visible";
 id=zu_id;
 if(document.getElementById("layer_hidden").value=id){
 showAttachments(id);
 }
}

function startUpload(){
    document.getElementById('loader').style.visibility = 'visible';
	document.getElementById('result').innerHTML = '';
    return true;
}

function stopUpload(success){
      var result = '';
      if (success == 1){
         document.getElementById('result').innerHTML =
           'Dokument erfolgreich hochgeladen!';
      }
	  else if(success == 2) {
         document.getElementById('result').innerHTML = 'Dokument wählen oder Link eintragen';
      }
	  else if(success == 3) {
         document.getElementById('result').innerHTML = 'Konnte Dokument nicht hochladen!';
      }
      else {
         document.getElementById('result').innerHTML = 
           '';
      }
      document.getElementById('loader').style.visibility = 'hidden';
	  showAttachments(id);
      return true;   
}

function GetXmlHttpObject()
{
if (window.XMLHttpRequest)
  {
  // code for IE7+, Firefox, Chrome, Opera, Safari
  return new XMLHttpRequest();
  }
if (window.ActiveXObject)
  {
  // code for IE6, IE5
  return new ActiveXObject("Microsoft.XMLHTTP");
  }
return null;
}

function stateChanged()
{
if (xmlhttp.readyState==4)
  {
  document.getElementById("show_attachs").innerHTML=xmlhttp.responseText;
  }
}

function showAttachments(s_id)
{
if (s_id.length==0)
  {
  document.getElementById("show_attachs").innerHTML="Kein gültiger Datensatz vorhanden!";
  return;
  }
xmlhttp=GetXmlHttpObject();
if (xmlhttp==null)
  {
  alert ("Your browser does not support XMLHTTP!");
  return;
  } 
var url="upload.php";
url=url+"?id="+s_id;
url=url+"&sid="+Math.random();
xmlhttp.onreadystatechange=stateChanged;
xmlhttp.open("GET",url,true);
xmlhttp.send(null);
}