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=70;
           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);

  }

function getheight()
{
        var s=screen;
        var s2=s.height/2;
        document.write("<td height='+s2+' colspan='6' bgcolor='#A7A7A7' valign='top'>");
}

function showhide(idname)
{
   var obj=document.getElementById(idname);
   if(obj.style.display=='block') obj.style.display='none';
   else obj.style.display='block'; 
}