function showAdvSearch(){
	
	if(document.getElementById('advanced_search').style.display == 'block'){
		hide('advanced_search');
	}
	else{
		show('advanced_search', 'block');
	}
}

function show(id, how){
	
	document.getElementById(id).className='';
	
	if (navigator.appName == 'Microsoft Internet Explorer') {
		element=document.getElementById(id).style;
		element.display = 'block';
	}
	else {
		element=document.getElementById(id).style;
		element.display = how;
	}
}

function hide(id){
	
	element=document.getElementById(id).style;
	element.display = 'none';
}

function hledat_butt(){
	
	var hledat = document.getElementById('hledat_subm');
	var hledat_value = document.getElementById('hledat').value;
	
	if(hledat_value){
		hledat.innerHTML = "<a class='nohower' href='javascript: self.document.forms.search_form.submit()'>Hledat →</a>";
	}
	if(hledat_value == ""){
		hledat.innerHTML = "<span class='nohower'>Hledat →</span>";
	}
	
}
function newsletter_butt(){
	
	var hledat = document.getElementById('newsletter_subm');
	var hledat_value = document.getElementById('novinky').value;
	
	if(hledat_value){
		hledat.innerHTML = "<a class='nohower' href='javascript: self.document.forms.newsletter_form.submit()'>Odebírat novinky →</a>";
	}
	if(hledat_value == ""){
		hledat.innerHTML = "<span class='nohower'>Odebírat novinky →</span>";
	}
	
}

function fill_button(id){
    
    var button = document.getElementById(id);
    var button_value = button.value;
    
    if(button_value){
        button.className = "active";
    }
    if(button_value == ""){
        button.className = "wide";
    }
    
}

function fill_button_mini(id){
    
    var button = document.getElementById(id);
    var button_value = button.value;
    
    if(button_value){
        button.className = "active_mini";
    }
    if(button_value == ""){
        button.className = "";
    }
    
}