//fotogalerie prechod fotek
function previousPicture(ID, pole, pointer) {
    if ( pointer == 0 )
        pointer = (pole.length - 1);
    else
        pointer--;
        
    document.getElementById(ID).src = pole[pointer];
    
    
    var in_pointer = pointer;
    
    if ( in_pointer == 0 )
        in_pointer = (pole.length - 1);
    else
        in_pointer--;
        
    load_picture = new Image();
    load_picture.src = pole[in_pointer];   
    
    
    return pointer;
}

function nextPicture(ID, pole, pointer) {
    if ( pointer == (pole.length - 1) )
        pointer = 0;
    else
        pointer++;
        
    document.getElementById(ID).src = pole[pointer];
    
    
    var in_pointer = pointer;
    
    if ( in_pointer == (pole.length - 1) )
        in_pointer = 0;
    else
        in_pointer++;
        
    load_picture = new Image();
    load_picture.src = pole[in_pointer];
    
    
    return pointer;
}

function thisPicture(ID, pole, pointer) {       
    document.getElementById(ID).src = pole[pointer];
    
    
    var in_pointer1 = pointer;
    var in_pointer2 = pointer;
    
    if ( in_pointer1 == (pole.length - 1) )
        in_pointer1 = 0;
    else
        in_pointer1++;
        
    if ( in_pointer2 == 0 )
        in_pointer2 = (pole.length - 1);
    else
        in_pointer2--;
        
    load_picture1 = new Image();
    load_picture1.src = pole[in_pointer1];
    
    load_picture2 = new Image();
    load_picture2.src = pole[in_pointer2];
    
    
    return pointer;
}
//////////////////////////////////////

//fotogalerie scrolling
function rollRight(ID) {      
  document.getElementById(ID).scrollLeft = document.getElementById(ID).scrollLeft + 650;
}

function rollLeft(ID) {    
  document.getElementById(ID).scrollLeft = document.getElementById(ID).scrollLeft - 650;
}
////////////////////////////////////////////////////


function display(id){
  //alert(id);
  if(document.getElementById(id).style.display=='none'){
    document.getElementById(id).style.display = 'block';
  }
  else{
    document.getElementById(id).style.display = 'none';
  }
}
function display1(id){
  document.getElementById(id).style.display = 'block';
}
function display2(id){
  document.getElementById(id).style.display = 'none';
}


function buttMenuOver(N, id) {
  document.getElementById(id).src = 'images/button_on_' + N + '.jpg';
}
function buttMenuOut(N, id) {
  document.getElementById(id).src = 'images/button_' + N + '.jpg';
}


function potvrzeni_ul(url, dotaz) {
  if( confirm(dotaz) ) {
    location.replace(url);
  }
}
function potvrzeni_l(url, dotaz) {
  if( confirm(dotaz) ) {
    window.location.href = url;
  }
}


function ohodnotit(url) {
  location.replace(url);
}
function relink_re(url) {
  location.replace(url);
}
function relink(url) {
  window.location.href = url;
}



function resizeText(size) {
	text = document.getElementById('textShow');
	text.style.fontSize = size + "px";
}


function menuMouseOver(ID) {
  ID.style.background = 'url(images/menu_back_aktiv.gif)';
}
function menuMouseOut(ID) {
  ID.style.background = 'url(images/menu_back.gif)';
}


function rowMouseOver(ID) {
  ID.style.background = '#E2E1E3';
}
function rowMouseOut(ID, lichysudy) {
  if ( lichysudy == 1 )
    ID.style.background = 'none';
  else if ( lichysudy == 3 )
    ID.style.background = '#FFDDDD';
  else
    ID.style.background = '#F7F1F1';
}