function rozsvit(){
  
    element = document.getElementById("search");
    element.style.borderColor = '#1A6C9E';
    element.style.backgroundImage = 'url(design/search.png)';
    
    element = document.getElementById("search-shadow");
    element.style.visibility = 'visible';
  }
  
  function zhasni(){
  
    element = document.getElementById("search");
    element.style.borderColor = '#214D69';
    element.style.backgroundImage = 'none';
    
    element = document.getElementById("search-shadow");
    element.style.visibility = 'hidden';
  }
  
  function skryj(ID) {
  	element = document.getElementById(ID).style;
  	element.display = 'none';
  }
  
  function zobraz(ID) {
  	element = document.getElementById(ID).style;
  	element.display = 'block';
  }
  
  
  
  function zobrazRazeni(ID) {
  	element = document.getElementById(ID);
  	element.style.display = 'block';
  	
  	element = document.getElementById('razeni_href');
  	element.href = "javascript: skryjRazeni('razeni');";
  	element.innerHTML = "skrýt rozšířené řazení";
  }
  
  function skryjRazeni(ID) {
  	element = document.getElementById(ID).style;
  	element.display = 'none';
  	
  	element = document.getElementById('razeni_href');
  	element.href = "javascript: zobrazRazeni('razeni');";
  	element.innerHTML = "rozšířené řazení";
  }
  
  
  function JSCookiesTest() {
    
    //Vytvořím cookie, přečtu jí, rozhodnu, jestli to sedí,
    //z toho vyvodim; jestli je cookies on nebo off a cookie smazu.
    
    var cookieEnabled = false;
    var future = new Date();
    var past = new Date();
	  future.setTime(future.getTime()+(1*24*60*60*1000));
    past.setTime(past.getTime()-(1*24*60*60*1000));
    
    var future = future.toGMTString();
    var past = past.toGMTString();
    
    document.cookie = "test=abc; expires="+future;;
    cookieEnabled = (document.cookie != "");
    
    document.cookie = "test=abc; expires="+past;;
            
    if(cookieEnabled){
      skryj('JSCookiesTest');
    }
  }