function showNavSlug(id){
	document.getElementById('nav_slug_shortomatic').style.display = 'none';
	document.getElementById(id).style.display = 'block';
	if(id != "nav_slug_shortomatic")
		document.getElementById("nav_shortomatic").style.backgroundPosition = "0px 0px";
}

function hideNavSlug(id){
	document.getElementById(id).style.display = 'none';
	document.getElementById('nav_slug_shortomatic').style.display = 'block';
	if(id != "nav_slug_shortomatic")
		document.getElementById("nav_shortomatic").style.backgroundPosition = "0px -50px";
}