function ox() {
position=0;
xpos=document.body.clientWidth;
if (xpos > 780 ) { position=(xpos/2)-385; }
return position;
}; 

function clear_menu() { main_menu1.style.color='white' }

function menu_show(l,x) {
 if (document.all) { l.style.pixelLeft=x; l.style.visibility="visible" }
 else if (document.getElementById) { l.style.left=x; l.style.visibility="visible" }
};

function menu_hide(l,x) {
 if (document.all) { l.style.pixelLeft=x; l.style.visibility="hidden" }
 else if (document.getElementById) { l.style.left=x; l.style.visibility="hidden" }
};


function create_menu(fobj_num,te,fl,position,t,w){
 position=MainPosition+position;
 if ((document.all) || (document.getElementById))
 {
  if ((document.all) || (document.getElementById)) { document.write('<DIV ID="menu_item'+fobj_num+'" style="visibility:hidden; cursor:pointer; position:absolute; left:0px; top:'+t+'px; z-index:20" onmouseover="menu_show(this,'+position+')" onmouseout="menu_hide(this,-160)">'); }
  document.write('<table border="0" cellpadding="0" cellspacing="1" width="'+w+'" bgcolor="black">');
  for (i=0;i<=te.length-1;i++)
  {
   xfl=fl[i].charAt(0);
   if ((document.all) || (document.getElementById))
   {
    document.write('<tr><td height="20" bgcolor="#c0d8c0" onmouseover="className=\'popuplines\'" onmouseout="className=\'n\'" onclick="');
    if (xfl==' ') { document.write('win1=open(\''+fl[i]+'\',\'\',\'menubar=yes,toolbar=yes,location=yes,status=yes,scrollbars=yes,resizable=yes, width=1600, height=1200, left=0, top=0\');') }
    else { document.write('window.location=\''+fl[i]+'\'') }
    document.write('"><span class="popuplines1">&nbsp;'+te[i]+'</span></TD></TR>')
   }
  }
  document.write('</table>');
  if ((document.all) || (document.getElementById))  {document.write('</div>')}
 }
}

function onimg(evt) { window.location=window.location; evt.stopPropagation()  }

function ZobrazCelyDokument()
{
 if (window.addEventListener) { window.addEventListener("resize",onimg,true) }
 else
 {
  var oldRef = window.onresize;
  window.onresize = function() {
   if(oldRef != null && typeof oldRef != 'undefined')
     oldRef();
   location.reload();
  };
 };
// if (document.all) { loadtable.style.visibility="hidden"; maintable.style.visibility="visible"; mainbody.style.cursor="auto"; }
// else { document.getElementById('mainbody').style.cursor="auto"; }
}

function Zalozka(tab)
{
 var cislo=tab.substring(3,4);
 var deti=document.getElementsByTagName("div");
 var zahlavi=document.getElementById('tabulka').rows[0].cells;
 j=0;
 for (i=0; i<=deti.length-1; i++)
 {
  strTemp=deti[i].id;
  if (strTemp.substring(0,3)=='Tab')
  {
   document.getElementById(strTemp).style.display="none";
   zahlavi[j].className="zalozka_off";
   j++;
  }
 }
 document.getElementById(tab).style.display="block";
 document.getElementById('tabulka').rows[0].cells[cislo].className="zalozka_on";
 document.getElementById('empty').className="zalozka_hrana";
}