// Neil P. Arnold - 7/21/2004
// begin rollover script
function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function preloadImages() {
	if (document.images) {
		home_over = newImage("/images/nav/home_on.jpg");
		home_off = newImage("/images/nav/home.jpg");
		
		about_over = newImage("/images/nav/about_on.jpg");
		about_off = newImage("/images/nav/about.jpg");
		
		research_over = newImage("/images/nav/research_on.jpg");
		research_off = newImage("/images/nav/research.jpg");
		
		writings_over = newImage("/images/nav/writings_on.jpg");
		writings_off = newImage("/images/nav/writings.jpg");
		
		recipe_testing_over = newImage("/images/nav/recipe_testing_on.jpg");
		recipe_testing_off = newImage("/images/nav/recipe_testing.jpg");
		
		recipe_editing_over = newImage("/images/nav/recipe_editing_on.jpg");
		recipe_editing_off = newImage("/images/nav/recipe_editing.jpg");
		
		preloadFlag = true;
	}
}


function Off(target) {
	if (document.images && preloadFlag){
		document[target].src = eval(target + "_off.src");
	}
}

function Over(target) {
	if (document.images && preloadFlag){
		document[target].src = eval(target + "_over.src");
	}
}

//end rollover script

var preloadFlag = false;
preloadImages();