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) {
		pic04a_1 = newImage("pix/pic04a_1.gif");
		pic05a_1 = newImage("pix/pic05a_1.gif");
		pic06a_1 = newImage("pix/pic06a_1.gif");
		pic07a_1 = newImage("pix/pic07a_1.gif");
		pic08a_1 = newImage("pix/pic08a_1.gif");
		pic09a_1 = newImage("pix/pic09a_1.gif");
		pic10a_1 = newImage("pix/pic10a_1.gif");
		pic11a_1 = newImage("pix/pic11a_1.gif");
		pic12a_1 = newImage("pix/pic12a_1.gif");
		pic13a_1 = newImage("pix/pic13a_1.gif");
		pic14a_1 = newImage("pix/pic14a_1.gif");

		preloadFlag = true;
	}
}