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) {
		Start_25_o = newImage("img/Start_25_o.gif");
		Start_26_o = newImage("img/Start_26_o.gif");
		Start_27_o = newImage("img/Start_27_o.gif");
		Start_28_o = newImage("img/Start_28_o.gif");
		Start_29_o = newImage("img/Start_29_o.gif");
		Start_30_o = newImage("img/Start_30_o.gif");
		Start_31_o = newImage("img/Start_31_o.gif");
		preloadFlag = true;
	}
}


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];
		}
	}
}


preloadImages();