var loadingImage = '/static/interface/img/loading.gif';
var closeButton = '/static/interface/img/close.gif';
 
function getPageScroll(){

  var yScroll;

  if(self.pageYOffset){
    yScroll = self.pageYOffset;
  } else if(document.documentElement && document.documentElement.scrollTop){
    yScroll = document.documentElement.scrollTop;
  } else if(document.body){
    yScroll = document.body.scrollTop;
  }

  arrayPageScroll = new Array('', yScroll);
  return arrayPageScroll;
}

function getPageSize(){

  var xScroll, yScroll;

  if(window.innerHeight && window.scrollMaxY){
    xScroll = document.body.scrollWidth;
    yScroll = window.innerHeight + window.scrollMaxY;
  } else if(document.body.scrollHeight > document.body.offsetHeight){
    xScroll = document.body.scrollWidth;
    yScroll = document.body.scrollHeight;
  } else {
    xScroll = document.body.offsetWidth;
    yScroll = document.body.offsetHeight;
  }

  var windowWidth, windowHeight;
  if(self.innerHeight){
    windowWidth = self.innerWidth;
    windowHeight = self.innerHeight;
  } else if(document.documentElement && document.documentElement.clientHeight){
    windowWidth = document.documentElement.clientWidth;
    windowHeight = document.documentElement.clientHeight;
  } else if(document.body){
    windowWidth = document.body.clientWidth;
    windowHeight = document.body.clientHeight;
  }

  if(yScroll < windowHeight){
    pageHeight = windowHeight;
  } else {
    pageHeight = yScroll;
  }

  if(xScroll < windowWidth){
    pageWidth = windowWidth;
  } else {
    pageWidth = xScroll;
  }

  return new Array(pageWidth, pageHeight, windowWidth, windowHeight);
}

function pause(numberMillis){
  var now = new Date();
  var exitTime = now.getTime() + numberMillis;
  while(true){
    now = new Date();
    if(now.getTime() > exitTime)
      return;
  }
}

function getKey(e){
  if(e == null){ // ie
    keycode = event.keyCode;
  } else { // mozilla
    keycode = e.which;
  }
  key = String.fromCharCode(keycode).toLowerCase();

  if(key == 'x'){
    hideLightbox();
  }
}

function listenKey(){
  document.onkeypress = getKey;
}

function showLightbox(objLink) {

  var objOverlay = document.getElementById('overlay');
  var objLightbox = document.getElementById('lightbox');
  var objCaption = document.getElementById('lightboxCaption');
  var objImage = document.getElementById('lightboxImage');
  var objLoadingImage = document.getElementById('loadingImage');
  var objLightboxDetails = document.getElementById('lightboxDetails');

  if( window.text_arr && window.text_arr['Print'] ) 
	  $('#lightboxPrint span span').html( window.text_arr['Print'] );

  if(objLink.className.search('printLightbox') != -1){
    document.getElementById('lightboxPrint').style.display = 'block';
  }

  var arrayPageSize = getPageSize();
  var arrayPageScroll = getPageScroll();

  if(objLoadingImage){
    objLoadingImage.style.top = (arrayPageScroll[1] + ((arrayPageSize[3] - 35 - objLoadingImage.height) / 2) + 'px');
    objLoadingImage.style.left = (((arrayPageSize[0] - 20 - objLoadingImage.width) / 2) + 'px');
    objLoadingImage.style.display = 'block';
  }

  objOverlay.style.height = (arrayPageSize[1] + 'px');
  objOverlay.style.display = 'block';

  imgPreload = new Image();

  imgPreload.onload = function(){
    objImage.src = objLink.href;

    var lightboxTop = arrayPageScroll[1] + ((arrayPageSize[3] - 35 - imgPreload.height) / 2);
    var lightboxLeft = ((arrayPageSize[0] - 20 - imgPreload.width) / 2);

    objLightbox.style.top = (lightboxTop < 0) ? "35px" : lightboxTop + "px";
    objLightbox.style.left = (lightboxLeft < 0) ? "0px" : lightboxLeft + "px";


    objLightboxDetails.style.width = imgPreload.width + 'px';

    if(objLink.getAttribute('title')){
      objCaption.style.display = 'block';
      objCaption.innerHTML = objLink.getAttribute('title');
    } else {
      objCaption.style.display = 'none';
    }

    if(navigator.appVersion.indexOf("MSIE") != -1){
      pause(250);
    }

    if(objLoadingImage){
      objLoadingImage.style.display = 'none';
    }

    selects = document.getElementsByTagName("select");
    for(i = 0; i != selects.length; i++){
      selects[i].style.visibility = "hidden";
    }


    objLightbox.style.display = 'block';

    arrayPageSize = getPageSize();
    objOverlay.style.height = (arrayPageSize[1] + 'px');

    listenKey();

    return false;
  };

  imgPreload.src = objLink.href;

}

function hideLightbox(){
  objOverlay = document.getElementById('overlay');
  objLightbox = document.getElementById('lightbox');

  objOverlay.style.display = 'none';
  objLightbox.style.display = 'none';

  selects = document.getElementsByTagName("select");
  for(i = 0; i != selects.length; i++){
    selects[i].style.visibility = "visible";
  }

  document.onkeypress = '';
  
  document.getElementById('lightboxPrint').style.display = 'none';
}

function initLightbox(){

  if(!document.getElementsByTagName){
    return;
  }
  var anchors = document.getElementsByTagName("a");

  for(var i = 0; i < anchors.length; i++){
    var anchor = anchors[i];

    if(anchor.getAttribute("href") && (anchor.getAttribute("rel") == "lightbox")){
      anchor.onclick = function (){
        showLightbox(this);
        return false;
      }
    }
  }

  var objBody = document.getElementsByTagName("body").item(0);

  var objOverlay = document.createElement("div");
  objOverlay.setAttribute('id', 'overlay');
  objOverlay.onclick = function (){
    hideLightbox();
    return false;
  };
  objOverlay.style.display = 'none';
  objOverlay.style.position = 'absolute';
  objOverlay.style.top = '0';
  objOverlay.style.left = '0';
  objOverlay.style.zIndex = '10000';
  objOverlay.style.width = '100%';
  objBody.insertBefore(objOverlay, objBody.firstChild);

  var imgPreloader = new Image();

  imgPreloader.onload = function(){

    var objLoadingImageLink = document.createElement("a");
    objLoadingImageLink.setAttribute('href', '#');
    objLoadingImageLink.onclick = function (){
      hideLightbox();
      return false;
    };
    objOverlay.appendChild(objLoadingImageLink);

    var objLoadingImage = document.createElement("img");
    objLoadingImage.src = loadingImage;
    objLoadingImage.setAttribute('id', 'loadingImage');
    objLoadingImage.style.position = 'absolute';
    objLoadingImage.style.zIndex = '150';
    objLoadingImageLink.appendChild(objLoadingImage);

    imgPreloader.onload = function(){
    };

    return false;
  };

  imgPreloader.src = loadingImage;

  var objLightbox = document.createElement("div");
  objLightbox.setAttribute('id', 'lightbox');
  objLightbox.style.display = 'none';
  objLightbox.style.position = 'absolute';
  objLightbox.style.zIndex = '11000';
  objBody.insertBefore(objLightbox, objOverlay.nextSibling);

  $('<button type="submit" class="btn"><span class="l"><span class="r">Печать</span></span></button>').css({
    position: 'absolute',
    left: '0',
    top: '-30px',
    display: 'none',
    margin: '0',
    padding: '0'
  }).attr({
    id: 'lightboxPrint'
  }).bind('click', function(){
    /*var newWin = window.open();
    newWin.document.open('about:blank');
    newWin.onload = function(){
      newWin.document.write('<html>' +
        '<head>' +
          '<title></title>' +
        '</head>' +
        '<body>' +
          '<img src="' + document.getElementById('lightboxImage').src + '" onload="window.print(); !window.opera && window.close();"></img>' +
        '</body>' +
      '</html>');
    };
    newWin.document.close();*/
    $('#lightboxImage').print();
    return false;
  }).appendTo(objLightbox);

  var objLink = document.createElement("a");
  objLink.setAttribute('href', '#');
  objLink.setAttribute('title', 'Нажмите чтобы закрыть');
  objLink.onclick = function (){
    hideLightbox();
    return false;
  };
  objLightbox.appendChild(objLink);

  var imgPreloadCloseButton = new Image();

  imgPreloadCloseButton.onload = function(){

    var objCloseButton = document.createElement("img");
    objCloseButton.src = closeButton;
    objCloseButton.setAttribute('id', 'closeButton');
    objCloseButton.style.position = 'absolute';
    objCloseButton.style.zIndex = '200';
    objLink.appendChild(objCloseButton);

    return false;
  };
  

  imgPreloadCloseButton.src = closeButton;

  var objImage = document.createElement("img");
  objImage.setAttribute('id', 'lightboxImage');
  objLink.appendChild(objImage);

  var objLightboxDetails = document.createElement("div");
  objLightboxDetails.setAttribute('id', 'lightboxDetails');
  objLightbox.appendChild(objLightboxDetails);

  var objCaption = document.createElement("div");
  objCaption.setAttribute('id', 'lightboxCaption');
  objCaption.style.display = 'none';
  objLightboxDetails.appendChild(objCaption);

}
var frameLightbox;