function showlayer(layer){
var myLayer = document.getElementById(layer);
    if(myLayer.style.display=="none" || myLayer.style.display==""){
        myLayer.style.display="block";
    } else {
        myLayer.style.display="none";
    }
}


function categorie() {
	var cat = document.getElementById('cat');
	var sub_cat =  document.getElementById('sub_cat');
	var link_cat =  document.getElementById('link_cat');
	
	
	if(cat.style.display == "none" || cat.style.display == "") {
		cat.style.display = "block";
		sub_cat.style.display = "none";
		link_cat.style.color = "#3CABCB";
	} else {
		cat.style.display = "none";
		link_cat.style.color = "#FFFFFF";
	}
	
}

function sub_categorie() {
	var cat = document.getElementById('cat');
	var sub_cat =  document.getElementById('sub_cat');
	var link_sub_cat =  document.getElementById('sub_link_cat');
	
	
	if(sub_cat.style.display == "none" || sub_cat.style.display == "") {
		sub_cat.style.display = "block";
		cat.style.display = "none";
		link_sub_cat.style.color = "#3CABCB";
	} else {
		sub_cat.style.display = "none";
		link_sub_cat.style.color = "#FFFFFF";
	}
	
}

function setStyle(id) {
	var item = document.getElementById(id);
	item.style.color = "#3CABCB";
}

function unSetStyle(id) {
	var item = document.getElementById(id);
	item.style.color = "#FFFFFF";
	
}

function closeBox() {
	var cat = document.getElementById('cat');
	var sub_cat =  document.getElementById('sub_cat');
	
	sub_cat.style.display = "none";
	cat.style.display = "none";
}