function showhide_submenu(xSubMenu, xShow)
{
	var oJewelSubMenu = document.getElementById("submenu_" + xSubMenu);

	if(oJewelSubMenu)
	{

		if(xShow)
		{
			 oJewelSubMenu.style.display = 'block';
		}
		else
		{
			oJewelSubMenu.style.display = 'none';
		}
	}

}

function hideall_submenus()
{
	showhide_submenu("jewellery", false);
	showhide_submenu("collections", false);
	showhide_submenu("information", false);
}