var
  block_direction = new Array(); // 0 - vert, 1 - horiz
  block_color = new Array(); // 0 - black, 1- red
  block_opened = new Array (); // 1 - opened, 0 - closed
  
// definice
// kontakt
  block_direction[1] = 0;
  block_color[1] = 0;
  block_opened[1] = 1;

// aktuality  
  block_direction[2] = 0;
  block_color[2] = 0;
  block_opened[2] = 1;

// to bily horizontalni s pruhem  
  block_direction[3] = 1;
  block_color[3] = 1;
  block_opened[3] = 1;

// topmenu  
  block_direction[4] = 1;
  block_color[4] = 0;
  block_opened[4] = 1;

// produkty
  block_direction[5] = 0;
  block_color[5] = 1;
  block_opened[5] = 1;
  
// tagcloud  
  block_direction[6] = 0;
  block_color[6] = 0;
  block_opened[6] = 1; 
  
  // to na homepage napravo    - reference
  block_direction[7] = 0;
  block_color[7] = 0;
  block_opened[7] = 1;   

  // AdWords na homepage
  block_direction[8] = 0;
  block_color[8] = 0;
  block_opened[8] = 1;   

  // loga naravo
  block_direction[9] = 0;
  block_color[9] = 0;
  block_opened[9] = 1;   

  
function block_change(id) {
  var img;
  var styl;
  
  obj=document.getElementById('hblock_'+id);
  ico=document.getElementById('hide_'+id);
  
  if (obj) {
    img='http://neofema.cz/img/sipka_';
    if (block_color[id]==0) {
      img=img+'cerna_';
    } else {
      img=img+'bila_';
    }
    if (block_opened[id]==1) {     
      if (block_direction[id]==0) {
        img=img+'dolu'; 
      } else {
        if (id==4) {
          img=img+'leva';
        } else {
          img=img+'prava';
        }
      }
    } else {
      if (block_direction[id]==0) {
        img=img+'nahoru'; 
      } else {
        if (id==4) {
          img=img+'prava';
        } else {
          img=img+'leva';
        }
      }
    } 
    
    if (block_opened[id]==1) {
      styl='none';  
      block_opened[id] = 0;         
    } else {
      styl='block';
      block_opened[id] = 1;   
    }
    
    img=img+'.png';
    
    obj.style.display = styl;
    if (ico) {
      ico.src=img;
    } 
  } 
  
  return false; 
}

function block_close(id) {
  obj=document.getElementById('cblock_'+id);
  if (obj) {
    obj.style.display='none'; 
    
    if (id==3) {
      cn=document.getElementById('hpruh');
      if (cn) {
        cn.className='pruh';
      }
    } 
  }
  return false;
}

// nase nabidka
var currentNabidka=0;
function openNabidka(id) {
	if (currentNabidka!=id) {
		if (currentNabidka>0) {
			document.getElementById('ref_'+currentNabidka).style.display='none';
			document.getElementById('miniref_'+currentNabidka).style.display='none';
			var o=document.getElementById('refmore_'+currentNabidka);
			if (o) o.style.display='none';
		}
		
		document.getElementById('ref_'+id).style.display='block';
		document.getElementById('miniref_'+id).style.display='block';
		var o=document.getElementById('refmore_'+id);
			if (o) o.style.display='block';
		
		currentNabidka=id;
	}
	return false;
}