function show_menu(){
	hide_contato();
	$("main-menu").style.width = '288px';
	$("options").style.display = 'block';
	$("dots").style.display = 'block';
	$("main-expand-button").hide();
	$("main-close-button").show();			
}
function hide_menu(){
	hide_contato();
	if(sub_menu_atual != null){
		close_submenu(sub_menu_atual);
	}
	$("main-menu").style.width = '88px';
	$("options").style.display = 'none';
	$("dots").style.display = 'none';
	$("main-expand-button").show();
	$("main-close-button").hide();
}
function show_submenu(item){
	if(sub_menu_atual != null){
		$("submenu-"+ sub_menu_atual).hide();
	}
	sub_menu_atual = item;
	$("submenu-"+ item).show();
}
function close_submenu(item){
	sub_menu_atual = null;
	$("submenu-"+ item).hide();
}
function show_contato(){
	hide_menu();
	$("contact").show();
	$("contact-button-hit").removeClassName('hit');
	$("contact-button-hit").addClassName('hit selected');
}
function hide_contato(){
	$("contact").hide();
	$("contact-button-hit").removeClassName('hit selected');
	$("contact-button-hit").addClassName('hit');
}
function change_image(id, file){
	if(id != imagem_atual){
		$("thumb-"+ imagem_atual).removeClassName("selected no-print");
		$("thumb-"+ id).addClassName("selected no-print");		
		$("valign-content").replace("<div id='valign-content' class='valign-content'><img id='the-image' src='"+ file +"' /></div>");
		$("product-image-spinner").show();
		$("the-image").setOpacity(0);
		imagem_atual = id;
		check_image_size();
	}	
}