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) {

		rai2_15_over = newImage("images/rai2_15-over.jpg");

		rai2_16_over = newImage("images/rai2_16-over.jpg");

		rai2_17_over = newImage("images/rai2_17-over.jpg");

		rai2_18_over = newImage("images/rai2_18-over.jpg");

		rai2_26_over = newImage("images/rai2_26-over.jpg");

		rai2_27_over = newImage("images/rai2_27-over.jpg");

		rai2_28_over = newImage("images/rai2_28-over.jpg");

		rai2_31_rai2_10_over = newImage("images/rai2_31-rai2_10_over.jpg");

		rai2_31_rai2_12_over = newImage("images/rai2_31-rai2_12_over.jpg");

		rai2_31_rai2_20_over = newImage("images/rai2_31-rai2_20_over.jpg");

		rai2_31_rai2_22_over = newImage("images/rai2_31-rai2_22_over.jpg");

		rai2_31_rai2_24_over = newImage("images/rai2_31-rai2_24_over.jpg");

		preloadFlag = true;

	}

}