function popup(width, height, adres, noscroll){
if (parseInt (navigator.appVersion) >= 4 ){
  X=(screen.width  - width)/2;
  Y=(screen.height - height)/2;
  }
else {
  X=250;
  Y=100;
  }
if(noscroll) m_scroll='no';
else m_scroll='yes';
popupWin = window.open(adres, 'no1', 'location=0,resizable=yes,scrollbars='+m_scroll+',width='+width+',height='+height+',top='+Y+',left='+X);
}

function fl_popup(width, height, adres){
if (parseInt (navigator.appVersion) >= 4 ){
  X=(screen.width  - width)/2;
  Y=(screen.height - height)/2;
  }
else {
  X=250;
  Y=100;
  }
popupWin = window.open(adres, 'flash', 'location=0,resizable=0,scrollbars=0,toolbar=0,width='+width+',height='+height+',top='+Y+',left='+X);
}

function switch_div(d_id){
obj=document.getElementById(d_id);
if(obj){
 if(obj.style.display=='none'||!obj.style.display)
  obj.style.display='block';
 else
  obj.style.display='none';
 }
}