function hide_kat (id)
  {
  	var obj = document.getElementById(id);
    if (obj.style.display == 'none') obj.style.display = '';
    else obj.style.display = 'none';

  }

function show_img(img,width,height)
	{
	   var a
	   var b
	   var url
	   vidWindowWidth=width;
	   vidWindowHeight=height;
	   a=(screen.height-vidWindowHeight)/5;
	   b=(screen.width-vidWindowWidth)/2;
	   features="top="+a+",left="+b+",width="+vidWindowWidth+",height="+vidWindowHeight+",toolbar=no,menubar=no,location=no,directories=no,scrollbars=no,resizable=no";
	   url="/show.php?img="+img;
	   window.open(url,'',features,true);
	}

function add(msg_num)
  {
       var a
	   var b
	   var url
	   var vidWindowWidth
	   var vidWindowHeight

	   vidWindowWidth=250;
	   vidWindowHeight=60;
	   a=(screen.height-vidWindowHeight)/5;
	   b=(screen.width-vidWindowWidth)/2;

	   features="top="+a+",left="+b+",width="+vidWindowWidth+",height="+vidWindowHeight+",toolbar=no,menubar=no,location=no,directories=no,scrollbars=no,resizable=no";
	   url="/add.php?id_tov="+msg_num;
	   mreplywin = window.open(url,'',features,true);

  }