// 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) {
		index_03_over = newImage("images/index_03-over.gif");
		index_04_over = newImage("images/index_04-over.gif");
		index_06_over = newImage("images/index_06-over.gif");
		index_07_over = newImage("images/index_07-over.gif");
		index_19_over = newImage("images/index_19-over.gif");
		index_21_over = newImage("images/index_21-over.gif");
		index_23_over = newImage("images/index_23-over.gif");
		index_25_over = newImage("images/index_25-over.gif");
		index_27_over = newImage("images/index_27-over.gif");
		index_29_over = newImage("images/index_29-over.gif");
		preloadFlag = true;
	}
}