function show_hide(id){
	if(document.getElementById(id).style.display == 'none'){
		document.getElementById(id).style.display = 'block';
	}else{
		document.getElementById(id).style.display = 'none';
	}
	
	if(id == 'znjdz_paczkomat_content'){
		document.getElementById('znjdz_paczke_content').style.display = 'none';
	}else{
		document.getElementById('znjdz_paczkomat_content').style.display = 'none';
	}
	
	if(document.getElementById('znjdz_paczke_content').style.display == 'none'){
		document.getElementById('znjdz_paczke').style.backgroundImage = '';
	}else{
		document.getElementById('znjdz_paczke').style.backgroundImage = 'url(images/bt/images/bt_sledz_paczke_up.png)';
	}
	
	if(document.getElementById('znjdz_paczkomat_content').style.display == 'none'){
		document.getElementById('znjdz_paczkomat').style.backgroundImage = '';
	}else{
		document.getElementById('znjdz_paczkomat').style.backgroundImage = 'url(images/bt/images/bt_znajdz_paczkomat_up.png)';
	}		
}