// JavaScript Document

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) {
		NavigationButtons_PrevArrow_down = newImage("../../images/navigation/NavigationButtons_PrevAr-02.gif");
		NavigationButtons_PrevArrow_over = newImage("../../images/navigation/NavigationButtons_PrevAr-03.gif");
		NavigationButtons_NextArrow_over = newImage("../../images/navigation/NavigationButtons_NextAr-06.gif");
		NavigationButtons_NextArrow_down = newImage("../../images/navigation/NavigationButtons_NextAr-07.gif");
		chapter_Prev_01_over = newImage("../../images/chapter_Prev_01-over.gif");
		chapter_Prev_01_down = newImage("../../images/chapter_Prev_01-down.gif");
		chapter_Next_01_over = newImage("../../images/navigation/chapter_Next_01-over.gif");
		chapter_Next_01_down = newImage("../../images/navigation/chapter_Next_01-down.gif");
		preloadFlag = true;
	}
}