var pwd = "";
var z = "";

function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (pwd != changeImages.arguments[0]) {
		if (document.images && (preloadFlag == true)) {
			for (var i=0; i<changeImages.arguments.length; i+=2) {
				document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
			}
		}
	}
}

var preloadFlag = false;

function preloadImages() {
	if (document.images) {
		
		home_over 			= newImage("/images/nav/home_over.gif");
		about_over       = newImage("/images/nav/about_over.gif");
		books_over        = newImage("/images/nav/books_over.gif");
		intheworks_over      = newImage("/images/nav/intheworks_over.gif");
		events_over      = newImage("/images/nav/events_over.gif");
		sales_over      = newImage("/images/nav/sales_over.gif");
		contact_over         = newImage("/images/nav/contact_over.gif");


		
		preloadFlag = true;
	}
	
	var delim = "";
	var dirtest = document.location.pathname.split('/');
	var delim = dirtest.length > 2 ? '/' : '.';
	var directory = document.location.pathname.split(delim);
		if (dirtest.length == 3) {
		
		pwd = directory[directory.length-2]};
		
	if (dirtest.length == 4) {
	
		pwd = directory[directory.length-3]};
	
	if (pwd == "about")    { document.about.src    = "/images/nav/about_over.gif"  }
	if (pwd == "books")    { document.books.src    = "/images/nav/books_over.gif"  }
	if (pwd == "intheworks")    { document.intheworks.src    = "/images/nav/intheworks_over.gif"  }	
	if (pwd == "events")    { document.events.src    = "/images/nav/events_over.gif"  }	
	if (pwd == "sales")    { document.sales.src    = "/images/nav/sales_over.gif"  }	
	if (pwd == "contact")    { document.contact.src    = "/images/nav/contact_over.gif"  }


}