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

function changeImages() {
	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) {
		month_over = newImage("images/magazine/month_over.jpg");
		order_over = newImage("images/magazine/order_nav_over");
		store_over = newImage("images/magazine/store_over.jpg");
		backissues_over = newImage("images/magazine/backIssues_over.jpg");
		staff_over = newImage("images/magazine/staff_over.jpg");
		
		nav_home_over = newImage("images/nav/nav_home_over.jpg");
		nav_advertising_over = newImage("images/nav/nav_advertising_over");
		nav_editorials_over = newImage("images/nav/nav_ewitorials_over.jpg");
		nav_distribution_over = newImage("images/nav/nav_distribution_over.jpg");
		nav_aboutus_over = newImage("images/nav/nav_aboutus_over.jpg");
		
		preloadFlag = true;
	}
}