// JavaScript Document

    promenna = new Image();
    promenna.src = "img/zavri-menu.gif";
    
function skryjvse() {
    document.getElementById('delka').style.display='none';
    document.getElementById('delka-2').style.display='none';
    if(document.getElementById('delka-22'))
    {
      document.getElementById('delka-22').style.display='none';
    }
    document.getElementById('doba').style.display='none';
    document.getElementById('doba-2').style.display='none';
    if(document.getElementById('doba-22'))
    {
      document.getElementById('doba-22').style.display='none';
    }
    document.getElementById('cena').style.display='none';
    document.getElementById('cena-2').style.display='none';
    if(document.getElementById('cena-22'))
    {
      document.getElementById('cena-22').style.display='none';
    }
}

function zobrazSkryj(idecko){
    el=document.getElementById(idecko).style; 
		el.display=(el.display == 'block')?'none':'block';
		
		idecko2 = idecko+"-2";		
		ell=document.getElementById(idecko2).style; 
		ell.display=(ell.display == 'block')?'none':'block';
		
    if(document.getElementById(idecko+'-22'))
    {
      idecko4 = idecko+"-22";		
		  ell=document.getElementById(idecko4).style; 
		  ell.display=(ell.display == 'block')?'none':'block';
		}
    			
		if(el.display == 'block')
		{
		  idecko3 = idecko+"-obr";
		  elobr=document.getElementById(idecko3).style;
      elobr.backgroundImage='url(img/zavri-menu.gif)';
    }
    else
    {
      idecko3 = idecko+"-obr";
		  elobr=document.getElementById(idecko3).style;
      elobr.backgroundImage='url(img/rozevri-menu.gif)';
    }
		
	}
	
// funkce pro zmenu stranky v navigaci

function gotonewpage(what) {

  value = what.options[what.selectedIndex].value;
  if (value == "") return;
  window.location.href = value;
  
}