$(document).ready(function() { 
  $("a.fancybox").fancybox({
     'zoomOpacity' : true,
     'overlayShow' : false,
     'zoomSpeedIn' : 500,
     'zoomSpeedOut' : 500
  });  
  $("a.fancybox_group").fancybox({
     'zoomSpeedIn': 300, 
     'zoomSpeedOut': 300, 
     'overlayShow': false 
  });  
}); 


function change_image(f_id) {
        
  
  var idnumber = f_id.substring(8,9);
  
  var image_mittel_id = "s_" + idnumber + "_mittel";         
  var image_mittel = document.getElementById(image_mittel_id).value;
  var image_org_id = "s_" + idnumber + "_org";
  var image_org = document.getElementById(image_org_id).value; 
  
  document.getElementById('img_image_haupt').src = image_mittel;
  document.getElementById('a_image_haupt').href = image_org;
  document.getElementById('a_zoom').href = image_org;
}



var Timer;
function ScrollUp() {  
  Timer = setInterval("document.getElementById('contentscroll').scrollTop -= 10", 10);
}
function ScrollDown() {
  Timer = setInterval("document.getElementById('contentscroll').scrollTop += 10", 10);    
}
function ScrollUp1() {
  document.getElementById('contentscroll').scrollTop -= 20; 
}
function ScrollDown1() {
  document.getElementById('contentscroll').scrollTop += 20; 
}

function ClearTimer() {  
 clearInterval(Timer); 
}

function wheel(event) {
  var delta = 0;
  if (!event) {
    event = window.event;
  }
  if (event.wheelDelta) {
    delta = event.wheelDelta/120;
    if (window.opera) {
      delta = -delta;
    }
  }
  else if (event.detail) {
    delta = -event.detail/3;
  }
  if (delta) {
    if (delta < 0) {
      ScrollDown1();
    }
    else {
      ScrollUp1();
    }
  }
}
if (window.addEventListener) { window.addEventListener('DOMMouseScroll', wheel, false); }
window.onmousewheel = document.onmousewheel = wheel;


function edit_value(){
  var edit_fields = document.getElementById('edit_fields').value;
  
  if (edit_fields == 0) {
    document.getElementById('edit_fields').value = 1;
    document.getElementById("qty_edit").style.background = 'url(images/btn_qty_save.jpg) no-repeat';
    
    var inputs = document.getElementsByTagName('input');
    var name;    
    for( var i=0; i < inputs.length; i++ )
    {    
      name =  inputs[i].id.substring(0,3);
      if (name == "qty") {
        
        
        // Feld freigeben
        document.getElementById(inputs[i].id).style.display = 'inline';
        document.getElementById(inputs[i].id + "_normal").style.display = 'none';        
      }
    }
    
    
    
    
  } else {       
       document.cart_detail.submit();
    
  }
}