var imgSrc = 'images/';

if ( document.images ) {
	image01on = new Image();
	image01on.src = imgSrc + "nav/01_about_on.jpg";
	image02on = new Image();
	image02on.src = imgSrc + "nav/02_worksonpaper_on.jpg";
	image03on = new Image();
	image03on.src = imgSrc + "nav/03_worksoncanvas_on.jpg";
	image04on = new Image();
	image04on.src = imgSrc + "nav/04_resume_on.jpg";
	image05on = new Image();
	image05on.src = imgSrc + "nav/05_contact_on.jpg";
	
	image01off = new Image();
	image01off.src = imgSrc + "nav/01_about_off.jpg";
	image02off = new Image();
	image02off.src = imgSrc + "nav/02_worksonpaper_off.jpg";
	image03off = new Image();
	image03off.src = imgSrc + "nav/03_worksoncanvas_off.jpg";
	image04off = new Image();
	image04off.src = imgSrc + "nav/04_resume_off.jpg";
	image05off = new Image();
	image05off.src = imgSrc + "nav/05_contact_off.jpg";
}

function changeImages() {
	if ( document.images ) {
		for ( var i = 0; i < changeImages.arguments.length; i += 2 ) {
			document[changeImages.arguments[i]].src = eval ( changeImages.arguments[i+1] + ".src" );
		}
	}
}