// JavaScript Document

if (document.images) {
	aboutbuttonOn = new Image();
	aboutbuttonOn.src = "images/nav-about_1.gif";
	aboutbuttonOff = new Image();
	aboutbuttonOff.src = "images/nav-about_0.gif";
	
	portfoliobuttonOn = new Image();
	portfoliobuttonOn.src = "images/nav-portfolio_1.gif";
	portfoliobuttonOff = new Image();
	portfoliobuttonOff.src = "images/nav-portfolio_0.gif";
	
	blogbuttonOn = new Image();
	blogbuttonOn.src = "images/nav-blog_1.gif";
	blogbuttonOff = new Image();
	blogbuttonOff.src = "images/nav-blog_0.gif";
	
	contactbuttonOn = new Image();
	contactbuttonOn.src = "images/nav-contact_1.gif";
	contactbuttonOff = new Image();
	contactbuttonOff.src = "images/nav-contact_0.gif";
	}
function activate(buttonname) {
	if (document.images) {
		document[buttonname].src = eval(buttonname + "On.src");
	}
	}
function deactivate(buttonname) {
	if (document.images) {
		document[buttonname].src = eval(buttonname + "Off.src");
	}
	}