function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function nav_form_submit(faction) {
  document.tnavform.action=faction;
  document.tnavform.submit()
}

function cng_tm_bg(menu_item, style)
{
  if(style == 1) {
    menu_item.style.backgroundImage='url(images/tm_mb_sel.jpg)';
  } else {
    menu_item.style.backgroundImage='url(images/tm_mb.jpg)';
  }
}

function cng_image(item, image)
{
  item.src=image;
}

function cng_bg_col(item, color)
{
  item.style.backgroundColor=color;
}

function preloadImages()
{
  if(document.images)
  {
    if(!document.imageArray) document.imageArray = new Array();
    var i,j = document.imageArray.length, args = preloadImages.arguments;
    for(i=0; i<args.length; i++)
    {
      if (args[i].indexOf("#")!=0)
      {
        document.imageArray[j] = new Image;
        document.imageArray[j++].src = args[i];
      }
    }
  }
}

function imageChange(name,src) {
  if (document.images) document.images[name].src = src
}

function imageChange(name,src) {
  if (document.images) document.images[name].src = src
}

function Showbranch (oElement) {
  var oElementNode = document.getElementById(oElement);
  if ( oElementNode.style.display == 'none' ) {
    oElementNode.style.display = 'block';
  } else {
    oElementNode.style.display = 'none';
  }
}

function check_categories_selection() {
  for (var i = 0; i <= document.forms.chooser.prtcategory_id.length - 1; i++)
  if (document.forms.chooser.prtcategory_id[i].checked) return true
  alert('Помилка')
  return false
}