function image(id, url, dir) {

  if(!dir)
     dir='images/linki/';
  
  document.getElementById(id).src=dir+url;
}

function showhide(id) {
  var style = document.getElementById(id).style;
  style.display = style.display == "none"? "block" : "none";
}

function change_img(path, desc) {
   parent.scroll(0, 630);
   parent.document.getElementById('img').src=path;
   parent.document.getElementById('img_desc').value=desc;
}

function popup(url, width, height)
{
 if(!width) 
   width=425;
 if(!height)
   height=550;
   
 window.open(url,'Image', 'width='+ width +', height='+ height +',menubar=no,scrollbars=auto,toolbar=no,location=no,directories=no,resizable=yes,top=10,left=100'); 
}