// Фотоколонка
var zi = 100;
var scrTop = 0;

function display() {
  if(op < 1) {
    op += 0.1;
    wObj.style.opacity = op;
    wObj.style.filter = 'alpha(opacity='+ op*100 +')';
    setTimeout(display, 50);
  }
}
function pic(picture) {
  wObj = document.getElementById(picture);

  scrTopNew = docHeight()/2 + scrollTop() - 175 +'px';
  if(scrTopNew != scrTop) piclose();
  scrTop = scrTopNew;
  wObj.style.top = scrTop;

  zi++;
  wObj.style.zIndex = zi;
  wObj.style.opacity = 0;
  op = 0;
  wObj.style.display = 'block';

  display();
}
function galpic(picture) {
  wObj = document.getElementById(picture);

  zi++;
  wObj.style.zIndex = zi;
  wObj.style.opacity = 0;
  op = 0;
  wObj.style.display = 'block';

  display();
}
function piclose() {
  if(document.getElementById('pic1'))
   document.getElementById('pic1').style.display='none';
  if(document.getElementById('pic2'))
   document.getElementById('pic2').style.display='none';
  if(document.getElementById('pic3'))
   document.getElementById('pic3').style.display='none';
  if(document.getElementById('pic4'))
   document.getElementById('pic4').style.display='none';
  if(document.getElementById('pic5'))
   document.getElementById('pic5').style.display='none';
  if(document.getElementById('pic6'))
   document.getElementById('pic6').style.display='none';
  if(document.getElementById('pic7'))
   document.getElementById('pic7').style.display='none';
  if(document.getElementById('pic8'))
   document.getElementById('pic8').style.display='none';
  if(document.getElementById('pic9'))
   document.getElementById('pic9').style.display='none';
  if(document.getElementById('pic10'))
   document.getElementById('pic10').style.display='none';
  if(document.getElementById('pic11'))
   document.getElementById('pic11').style.display='none';
  if(document.getElementById('pic12'))
   document.getElementById('pic12').style.display='none';
  if(document.getElementById('pic13'))
   document.getElementById('pic13').style.display='none';
  if(document.getElementById('pic14'))
   document.getElementById('pic14').style.display='none';
  if(document.getElementById('pic15'))
   document.getElementById('pic15').style.display='none';
}
function docHeight() {
  return document.compatMode=='CSS1Compat' && !window.opera?document.documentElement.clientHeight:document.body.clientHeight;
}
function scrollTop() {
  return document.compatMode=='CSS1Compat' && !window.opera?document.documentElement.scrollTop:document.body.scrollTop;
}
// /Фотоколонка

// Преимущества натяжных потолков
function advantage(txt) {
  document.getElementById('advantage').innerHTML = txt;
}
// /Преимущества натяжных потолков