function SwitchVirtProhl(select, applet_main, applet_div) 
{
 var stranka = document.getElementById(select).options[document.getElementById(select).selectedIndex].value;
 if (stranka > "")
 {
   //alert(document.applets[0]);
   var applet_div_el   = document.getElementById(applet_div);
   if( !applet_div_el.style.display || applet_div_el.style.display == "none" )
   {
     applet_div_el.style.display = "block";
   }
   var applet_main_el  = document.getElementById(applet_main);
 
   //if(typeof applet_main_el.TransitTo == 'function') { 
     applet_main_el.TransitTo(stranka,1);
   //}
   
   //setTimeout(applet_main_el.TransitTo(stranka,1),3000);
 }
 return false;
}

function ZobrazIndexHistory() 
{
 var display_el = document.getElementById('index-history-pokracovani');
 var link_el    = document.getElementById('index-history-odkaz');

 if( !display_el.style.display || display_el.style.display == "none" ) 
 {
  display_el.style.display = "block"
  link_el.style.display    = "none";
 }
 else 
 {
  display_el.style.display = "none";
  link_el.style.display    = "block";
 }
}