function previewerfalse()
{
  var pop = document.getElementById('previewer');
  pop.style.display = 'none';
}

function previewer_tut(it, src, width, height)
{
  var pop = document.getElementById('previewer');
  var imageneer = document.getElementById('previewer_3');

  y = (window.scrollY) ? window.scrollY : document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop;
  ElWidth = (window.scrollWidth) ? window.scrollWidth : document.documentElement.scrollWidth;
  pop.style.top = y + 'px';
  pop.style.left = ((ElWidth-width)/2)+'px';
  pop.style.display = 'block';

  imageneer.innerHTML = '<img src = "' + src + '" />';
  return false;
}

function resizeBlock(obj)
{
  document.getElementById('gallery_full').style.display = 'block';
  content = document.getElementById('gallery_full');
  w = obj.width;
  content.style.width = w + 'px';
}