var cached=0;

if (document.images){

the_home_off = new Image()
the_home_off.src = "/images/nav/home.gif"
the_home_on = new Image()
the_home_on.src = "/images/nav/home_on.gif"

the_licensing_off = new Image()
the_licensing_off.src = "/images/nav/licensing.gif"
the_licensing_on = new Image()
the_licensing_on.src = "/images/nav/licensing_on.gif"

the_examples_off = new Image()
the_examples_off.src = "/images/nav/examples.gif"
the_examples_on = new Image()
the_examples_on.src = "/images/nav/examples_on.gif"

the_contact_off = new Image()
the_contact_off.src = "/images/nav/contact.gif"
the_contact_on = new Image()
the_contact_on.src = "/images/nav/contact_on.gif"

the_originals_off = new Image()
the_originals_off.src = "/images/nav/originals.gif"
the_originals_on = new Image()
the_originals_on.src = "/images/nav/originals_on.gif"

the_books_off = new Image()
the_books_off.src = "/images/nav/books.gif"
the_books_on = new Image()
the_books_on.src = "/images/nav/books_on.gif"

the_blog_off = new Image()
the_blog_off.src = "/images/nav/blog.gif"
the_blog_on = new Image()
the_blog_on.src = "/images/nav/blog_on.gif"

cached=1;
}

function imageOn(imgName) {
	if (cached==1) {
	lineOn = eval("the_" + imgName + "_on.src");
	document [imgName].src= lineOn;
	}
}

function imageOff(imgName) {
	if (cached==1) {
	lineOff = eval("the_" + imgName + "_off.src");
	document [imgName].src= lineOff;
	}
}