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) {
		sks_0_over = newImage("graphics/homeup_07.jpg");
		sks_1_over = newImage("graphics/homeup_08.jpg");
		sks_2_over = newImage("graphics/homeup_09.jpg");
		sks_3_over = newImage("graphics/homeup_10.jpg");
		sks_4_over = newImage("graphics/homeup_11.jpg");
		sks_5_over = newImage("graphics/homeup_12.jpg");
		sks_6_over = newImage("graphics/1_05.jpg");
		sks_7_over = newImage("graphics/2_05.jpg");
		sks_8_over = newImage("graphics/3_05.jpg");
		sks_9_over = newImage("graphics/4_05.jpg");
		sks_10_over = newImage("graphics/5_05.jpg");		
		sks_11_over = newImage("graphics/subup_04.jpg");
		sks_12_over = newImage("graphics/subup_05.jpg");
		sks_13_over = newImage("graphics/subup_06.jpg");
		sks_14_over = newImage("graphics/subup_07.jpg");	
		sks_15_over = newImage("graphics/subup_08.jpg");
		sks_16_over = newImage("graphics/subup_14.jpg");
		sks_17_over = newImage("graphics/subup_15.jpg");		
		preloadFlag = true;
	}
}