function $(id)   { return document.getElementById(id); }

function get_over_src(src)   { return '/i/'+ src.replace(/.[a-zA-Z]{3}$/, "").replace (/(http.*)\/i\//, "") + '_over.' + src.replace(/.*\./, ""); }
function get_normal_src(src) { return '/i/' + src.replace(/_over/, "").replace (/(http.*)\/i\//, ""); }

function img_over(img) { img.src = get_over_src(img.src); }
function img_out(img)  { img.src = get_normal_src(img.src); }

function preload_images()
{
  var img = new Object(); 

  arguments = preload_images.arguments;

  for( i=0; i < arguments.length; i++) 
  {
    img[i]     = new Image();
    img[i].src = arguments[i];
  }

  i = 0;
  images = document.getElementsByTagName('img')
  while( image = images[i++] )
  {
    if( image.className.match(/over/, "") )
    {
      image.onmouseover = function() { this.src = get_over_src(this.src); } 
      image.onmouseout  = function() { this.src = get_normal_src(this.src); }  
    } 

    /* blur if require */
    image.parentNode.onfocus = function() { this.blur() }
  }
}

onload = function()
{
  preload_images(
    '/i/en/m/about_over.gif', 
    '/i/en/m/about/news_over.gif',
    '/i/en/m/boys_over.gif',
    '/i/en/m/girls_over.gif',
    '/i/en/m/kittens_over.gif',
    '/i/en/m/gallery_over.gif',
    '/i/en/m/links_over.gif',
    '/i/en/m/contacts_over.gif',
    '/i/en/m/kittens/available_over.gif',
    '/i/en/m/kittens/litters_over.gif',
    '/i/en/m/kittens/planned_over.gif',
    '/i/en/h/index_boys_over.gif',
    '/i/en/h/index_girls_over.gif'
   );
  
}

function sf( s, id, w, h, t, l )
{
  var cWidth = 0, cHeight = 0;

  if (typeof(window.innerWidth) == 'number') 
  {
    cWidth = window.innerWidth;
    cHeight = window.innerHeight;
  } else if (document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)) {
    cWidth = document.documentElement.clientWidth;
    cHeight = document.documentElement.clientHeight;
  } else if (document.body && (document.body.clientWidth || document.body.clientHeight)) {
    cWidth = document.body.clientWidth;
    cHeight = document.body.clientHeight;
  }

  var scrOfX = 0, scrOfY = 0;

  if(typeof(window.pageYOffset) == 'number') 
  {
    scrOfY = window.pageYOffset;
    scrOfX = window.pageXOffset;
  } else if (document.body && (document.body.scrollLeft || document.body.scrollTop)) {
    scrOfY = document.body.scrollTop;
    scrOfX = document.body.scrollLeft;
  } else if (document.documentElement && (document.documentElement.scrollLeft || document.documentElement.scrollTop)) {
    scrOfY = document.documentElement.scrollTop;
    scrOfX = document.documentElement.scrollLeft;
  }

  w += 0;
  h += 0;
  ch = h+70;

  var wc = parseInt((cWidth-w)/2)  + scrOfX - 100;
  var hc = parseInt((cHeight-h)/2) + scrOfY - 40;

  if( $('popup') )
  {
    $('overlay').style.height = cHeight ;

    if( document.body.scrollHeight && document.body.scrollHeight > cHeight )
      $('overlay').style.height = document.body.scrollHeight ;

    $('overlay').style.display = 'block';

    $('popup').style.top     = hc + "px"; 
    $('popup').style.left    = wc + "px"; 
    $('popup').style.width   = w + "px"; 
    $('popup').style.height  = ch + "px"; 
    $('popup').style.display = 'block';

    if( $('ptext') ) $('ptext').style.marginTop = (h+20) + "px";

    $('pimg').style.display = 'none';

    var isrc = 'http://'+window.location.host+l+'/p/'+s+'/'+id+'.img';

    if( $('pimg').src != isrc )
    {
      $('pimg').onload = function() { this.style.display = 'block'; if( $('ptext') ) $('ptext').style.marginTop = 0; }
      $('pimg').src    = l+'/p/'+s+'/'+id+'.img';
    }
    else
    {
      $('ptext').style.marginTop = 0;
      $('pimg').style.display = 'block';
    }

    $('pimg').title = t ;

    if( $('ptext') ) $('ptext').innerHTML = t;
  }

  return false ; 
}

function hf()
{
  $('popup').style.display   = 'none';
  $('overlay').style.display = 'none';
  $('overlay').style.height  = "100%";
}