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_08_over = newImage("images2/index_08-over.gif");
		index_09_over = newImage("images2/index_09-over.gif");
		index_10_over = newImage("images2/index_10-over.gif");
		index_11_over = newImage("images2/index_11-over.gif");
		index_12_over = newImage("images2/index_12-over.gif");
		index_13_over = newImage("images2/index_13-over.gif");
		index_14_over = newImage("images2/index_14-over.gif");
  */
		index_15_over = newImage("images2/index_15-over.gif");
		index_17_index_25_over = newImage("images2/index_17-index_25_over.gif");
		index_17_index_24_over = newImage("images2/index_17-index_24_over.gif");
		index_17_index_23_over = newImage("images2/index_17-index_23_over.gif");
		index_17_index_22_over = newImage("images2/index_17-index_22_over.gif");
		index_17_index_21_over = newImage("images2/index_17-index_21_over.gif");
		index_17_index_15_over = newImage("images2/index_17-index_15_over.gif");
		english_over = newImage("images2/english-over.gif");
		index_21_over = newImage("images2/index_21-over.gif");
		index_22_over = newImage("images2/index_22-over.gif");
		index_23_over = newImage("images2/index_23-over.gif");
		index_24_over = newImage("images2/index_24-over.gif");
		index_25_over = newImage("images2/index_25-over.gif");
		index_32_over = newImage("images2/index_32-over.gif");
		index_26_index_25_over = newImage("images2/index_26-index_25_over.gif");
		preloadFlag = true;
	}
}