var varObj = new Object();
varObj.defaultImg = true;
varObj.variationAttributes = 0;
varObj.variationsTree = null;

varObj.setImagePath = function(imagePath) {
  varObj.imagePath = imagePath;
}

varObj.setDefaultImageName = function(defaultImageName) {
  varObj.defaultImageName = defaultImageName;
}

varObj.setDefaultSmallImageName = function(defaultSmallImageName) {
  varObj.defaultSmallImageName = defaultSmallImageName;
}

varObj.setDefaultPartNumber = function(defaultPartNumber) {
  varObj.defaultPartNumber = defaultPartNumber;
}

varObj.setDefaultPrice = function(defaultPrice) {
  varObj.defaultPrice = defaultPrice;
}

varObj.setOverlayFrom = function(overlayFrom){
  varObj.overlayFrom = overlayFrom;
}

varObj.setOverlayOutOfStock = function(overlayOutOfStock){
  varObj.overlayOutOfStock = overlayOutOfStock;
}

varObj.setNoOverlay = function(noOverlay){
  varObj.noOverlay = noOverlay;
}

varObj.setVariations = function(variations) {
  varObj.variations = variations;
}

varObj.setItemInfos = function(itemInfos) {
  varObj.itemInfos = itemInfos;
}

varObj.setOrderItemInfos = function(orderItemInfos) {
  varObj.orderItemInfos = orderItemInfos;
}

/*
 * Initialize all select boxes and select the first valid element
 *
 */
varObj.init = function(what,where,outOfStock) {
  var pDiv = $(what);
  varObj.variationsTree = varObj.variations.dependencies;
  // changes for filtering out of stock items START
  for(var i = 0; i < varObj.variations.attributes.length; i++) {
    vList = varObj.variations.complete[varObj.variations.attributes[i]];
    if(vList.length > 1) {
      varObj.variationAttributes++;
    } else {
      varObj.variationsTree = varObj.variations.dependencies[varObj.variations.attributes[i]][varObj.variations.complete[varObj.variations.attributes[i]]]
    }
  }
  // changes for filtering out of stock items END
  var attributeList = varObj.variations.attributes;
  for(var i = 0; i < varObj.variations.attributes.length; i++) {
    varObj.createSelection(pDiv, varObj.variations.attributes[i], 0, where,outOfStock);
  }
  varObj.selectFirstValid(where,outOfStock);
}

varObj.selectFirstValid = function(where,outOfStock) {
  varObj.setItemId(varObj.getFirstValid(varObj.variations.dependencies), where,outOfStock);
}

varObj.getFirstValid = function(tree) {
  if($type(tree) == 'object') {
    for(var variation in tree) {
      if(varObj.variations.complete[variation]) {
        for(var i = 0; i < varObj.variations.complete[variation].length; i++) {
          var value = varObj.variations.complete[variation][i];
          var tmpResult = varObj.getFirstValid(tree[variation][value]);
          if(tmpResult) 
            return tmpResult;
        }
      }
    }
  } else {
    var updateData = varObj.itemInfos[tree];
    if(!updateData['button_overlay']){
      return tree;
    }
  }
  return null;
}

/*
 * Create a select box inside a parent div.
 */
varObj.createSelection = function(parent, id, selected, where, outOfStock) {
  var vList = varObj.variations.complete[id];
  var outDiv = new Element('div');
  var textSpan = new  Element('span', {'class' : 'label'});
  var varDiv = new Element('span', {'class' : 'prd_color'});
  var br = new  Element('br', {'class' : 'clear'});
  if(vList.length > 1) {
    var newSelect = new Element('select', { 
        'id': id,
        'disabled' : outOfStock,
        'class': 'productDetailsSelect',
        'styles' : {
        //  'text-align' : 'right',
          'width' : '100px',
          'margin-right' : '3px'
        },
        'events': { 
          'change': function() { 
            if(!outOfStock) varObj.selectChanged(newSelect, where); 
          }
        }
    });
    empty = true;
    validSizes = 0;
    for (var i = 0; i < vList.length; i++) {
      if(varObj.isValidSize(id,vList[i])) {
        var e = new Element('option');
        e.setProperty('value', vList[i]);
        e.setText(vList[i]);
        newSelect.adopt(e);
        empty = false;
        validSizes++;
      }
    }
    if(empty) {
      // add the first because of wishlist
      var e = new Element('option');
      e.setProperty('value', vList[0]);
      e.setText(vList[0]);
      newSelect.adopt(e);
    }
    if(validSizes == 1) {
      newSelect.setProperty('disabled', 'true');
    }
    outDiv.injectInside(parent);
    textSpan.injectInside(outDiv);
    varDiv.injectAfter(textSpan);
    br.injectAfter(varDiv);
    newSelect.injectInside(varDiv);
    textSpan.appendText(id + ': ');
  } else if (vList.length == 1) {
    outDiv.injectInside(parent);
    textSpan.injectInside(outDiv);
    varDiv.injectAfter(textSpan);
    br.injectAfter(varDiv);
  textSpan.appendText(id + ': ');
    varDiv.appendText(vList[0]);
  }
}

varObj.isValidSize = function(id, size) {
  data = varObj.itemInfos[varObj.variationsTree[id][size]];
  if(data['button_overlay'] && data['button_overlay'] == 'OVERLAY_OUT_OF_STOCK') {
    return false;
  } else {
    return true;
  }
}

/*
 *  Called by created select boxes at their onchange event.
 */
varObj.selectChanged = function(select, where) {
  varObj.changeSelections(select.id, select.options[select.selectedIndex].value, where);
  varObj.updateDetails(where);
}

/*
 *  Changes entries of the variation select boxes.
 *
 */
varObj.changeSelections = function(name, value, where) {
  for(var dependency in varObj.variations.dependencies[name][value]) {
    var dList = varObj.variations.complete[dependency];
    if(dList.length > 1) {
      var select = $(dependency);
      var oldValue = select.options[select.selectedIndex].value;
      var newIndex = 0;
      select.options.length = 0;
      for (var i = 0; i < dList.length; i++) {
        if(varObj.variations.dependencies[name][value][dependency][dList[i]]) {
          var newOpt = new Option(dList[i]);
          newOpt.value=dList[i];
          select.options[select.options.length] = newOpt;
          if(dList[i] == oldValue)
            newIndex = select.options.length-1;
        }
      }
      select.selectedIndex = newIndex;
    }
  }
}

varObj.getQuantity = function(where) {
  return $('number').value;
}

varObj.getImg = function() {
  if(varObj.itemInfos[varObj.getItemId()]['img']) {
    return varObj.itemInfos[varObj.getItemId()]['img'];
  } else {
    return varObj.defaultImageName;
  }
}

varObj.setItemId =  function(itemId, where, outOfStock) {
  if(varObj.orderItemInfos) {
    for(var variation in varObj.orderItemInfos) {
      if(varObj.variations.complete[variation])
        if(varObj.variations.complete[variation].length > 1) {
          varSel = $(variation);
          for(var j = 0; j < varSel.options.length; j++) {
            if(varSel.options[j].value == varObj.orderItemInfos[variation])
              varSel.selectedIndex = j;
          }
        }
    }
  } else {
    var itemData = varObj.getItemData(itemId, varObj.variations.dependencies, new Object());
    if(itemData)
      for(var variation in itemData) {
        if(varObj.variations.complete[variation])
          if(varObj.variations.complete[variation].length > 1) {
            varSel = $(variation);
            for(var j = 0; j < varSel.options.length; j++) {
              if(varSel.options[j].value == itemData[variation])
                varSel.selectedIndex = j;
            }
          }
      }
      
  }
  varObj.updateDetails(where, outOfStock);
}

varObj.getItemData = function(itemId, tree, result) {
  if($type(tree) == 'object' && result && itemId) {
    for(var variation in tree) {
      if(varObj.variations.attributes.contains(variation)) {
        for(var i = 0; i < varObj.variations.complete[variation].length; i++) {
          var value = varObj.variations.complete[variation][i];
          result[variation] = value;
          if(tree[variation][value] == itemId)
            return result;
          else {
            var tmpResult = varObj.getItemData(itemId, tree[variation][value], result);
            if(tmpResult)
              return tmpResult;
          }
        }
      }
    }
  }
  return null;
}

varObj.getItemId = function() {
  var result = varObj.variations.dependencies;
  for(var variation in varObj.variations.complete) {
    var varValue;
    if(varObj.variations.complete[variation].length > 1) {
      varSel = $(variation);
      if(varSel.options.length > varSel.selectedIndex && varSel.selectedIndex >= 0)
        varValue = varSel.options[varSel.selectedIndex].value;
    } else if(varObj.variations.complete[variation].length == 1) {
      varValue = varObj.variations.complete[variation][0];
    }
    if(result)
      result = result[variation][varValue]
  }
  return result;
}

varObj.updateDetails = function(where, outOfStock) {
  var updateData = varObj.itemInfos[varObj.getItemId(where)]
  if(updateData) {
    if(updateData['price']) {
      var dataToUpdate = $('prd_price');
      dataToUpdate.setHTML(updateData['price']);
    } else {
      var dataToUpdate = $('prd_price');
      dataToUpdate.setHTML(varObj.defaultPrice);
    }
    if(updateData['img']) {
      alert(updateData['img']);
      if($('img_0')) {
        var smallimageanchor = $('img_0');
        smallimageanchor.href = varObj.imagePath  + updateData['img'];
        smallimageanchor.setHTML('<img src="'+varObj.imagePath  + updateData['img_small']+'" alt="" />'); 
        varObj.defaultImg = false;
        if(smallimageanchor.getParent().hasClass("current")) {
          var dataToUpdate = $('prd_img_big');
          dataToUpdate.src = varObj.imagePath  + updateData['img']; 
        }
      } else {
        var dataToUpdate = $('prd_img_big');
        dataToUpdate.src = varObj.imagePath  + updateData['img'];
      }
    } else if(!varObj.defaultImg){
      if($('img_0')) {
        var smallimageanchor = $('img_0');
        smallimageanchor.href = varObj.imagePath  + varObj.defaultImageName;
        smallimageanchor.setHTML('<img src="'+varObj.imagePath  + varObj.defaultSmallImageName+'" alt="" />'); 
        if(smallimageanchor.getParent().hasClass("current")) {
          var dataToUpdate = $('prd_img_big');
          dataToUpdate.src = varObj.imagePath  + varObj.defaultImageName; 
        }
      } else {
        var dataToUpdate = $('prd_img_big');
        dataToUpdate.src = varObj.imagePath  + updateData['img'];
      } 
      varObj.defaultImg = true;
    }
  }    
}

varObj.insertZoomPlayer = function(partNumber, where) {
  var so = new SWFObject("http://images.ernstings-family.de/zoom/fsi4/fsi.swf?fpxsrc=Produktbilder/"+partNumber+".tif&Language=german", "productdetailflash", "324", "324", "8", "#ffffff");
  so.addParam("menu", "false");
  so.addParam("wmode", "transparent");
  so.addVariable("quality", "high");
  so.addVariable("scale", "high");
  so.addParam("bgcolor", "#ffffff");
  so.write(where);
}

varObj.getPrice = function(where) {
  if(varObj.itemInfos[varObj.getItemId(where)]['price']) {
    return varObj.itemInfos[varObj.getItemId(where)]['price'];
  } else {
    return varObj.defaultPrice;
  }
}