function abrirSubmenu() {
	var menu = document.getElementById('menu_produtos');
	var submenu = document.getElementById('submenu_produtos');
	submenu.style.display = "block";

	submenu.onmouseover = function() {
		submenu.style.display = "block";	
	}
	submenu.onmouseover = function() {
		submenu.style.display = "block";	
	}
	submenu.onmouseout = function() {
		submenu.style.display = "none";
	}	
			
	onmouseout = function() {
		submenu.style.display = "none";
	}
}