var pomocna = 0;

function skryj_div(div1, div2) {
        document.getElementById(div1).style.position ='absolute';        
        document.getElementById(div1).style.height = "0px";
        document.getElementById(div1).style.visibility = 'hidden';
        document.getElementById(div2).style.visibility = 'visible';
return false;
        } 
               
function zobraz_div(div1, div2){
        document.getElementById(div1).style.position ='relative';
        document.getElementById(div1).style.height ='auto';
        document.getElementById(div1).style.visibility = 'visible';
        document.getElementById(div2).style.visibility = 'hidden';        
        }
        

function zobrazskryj (div1, div2){
document.getElementById(div1).style.position ='absolute';
document.getElementById(div1).style.display ='none';
document.getElementById(div2).style.position ='relative';
document.getElementById(div2).style.display ='block';


}





        
        function kontrolaVyplneni(prefix, pocet)
        {
   
          var pocitadlo =0;
          for (var i = 1; i<=pocet; i++){
          
           if   (document.getElementById(prefix+i).value==""){
            document.getElementById(prefix+i).style.background = "pink";
            pocitadlo++;
           
           }else{
           
            document.getElementById(prefix+i).style.background = "white";
           }          
          
          }
          
          if (pocitadlo == 0){
          return true;
          
          }else{return false;}
          }
          
          
          
          function lightboxzobrazpotvrzeni (objekt, id, prefix){
document.getElementById(prefix+'hidden_id_uzivatele').value=id;
document.getElementById(objekt).style.display='block';
document.getElementById('lightbox_pozadi').style.display='block';
}


function lightboxskryj (objekt){

document.getElementById(objekt).style.display='none';
document.getElementById('lightbox_pozadi').style.display='none';


}



function gallery (jmenodiv, id, kronika, temp) {
 var rozlozeni = jmenodiv.split('+'); 
  var div = rozlozeni[1];
  
  var nazev = div+id;
 if (pomocna !=0){
document.getElementById(pomocna).style.backgroundColor = 'white';
} 
 if (temp){
 document.getElementById(jmenodiv).innerHTML = document.getElementById(temp).innerHTML;
 document.getElementById(jmenodiv).style.textAlign = 'justify';
 document.getElementById(jmenodiv).style.height = 'auto';
 }else{ 
       
document.getElementById(jmenodiv).style.textAlign = 'center';
document.getElementById(jmenodiv).style.height = '450px';
document.getElementById(jmenodiv).innerHTML = "<a href=#"+jmenodiv+" onclick = gallery('"+jmenodiv+"','','','temp"+div+"') title=zavøít><img src=include/admin/kronika/"+kronika+"/"+div+"/"+id+"   style = 'max-width: 600px; max-height: 450px;'/></a>" ;
// document.getElementById(nazev).style.border='inset red 1px';
document.getElementById(nazev).style.backgroundColor = 'red';
pomocna = nazev;

 }
}