function ShowHead(newHead)
{
	document.getElementById("entertainment").style.display = "none";
	document.getElementById("games").style.display = "none";
	document.getElementById("blog").style.display = "none";
	document.getElementById("technics").style.display = "none";
    document.getElementById("air").style.display = "none";
	document.getElementById("horace").style.display = "none";
	
	document.getElementById(newHead).style.display = "block";
}

function ShowMenu(menuid)
{
	HideMenu();
	document.getElementById(menuid).style.display = "block";
}

function HideMenu()
{
	document.getElementById("nav_menu_entertainment").style.display = "none";
	document.getElementById("nav_menu_developement").style.display = "none";
	document.getElementById("nav_menu_devblog").style.display = "none";
	document.getElementById("nav_menu_technics").style.display = "none";
	document.getElementById("nav_menu_air").style.display = "none";
	document.getElementById("nav_menu_horace").style.display = "none";
}