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) {
		m_01_m0_over = newImage("../images/m_01-m0_over.gif");
		m_01_m1_over = newImage("../images/m_01-m1_over.gif");
		m_01_m2_over = newImage("../images/m_01-m2_over.gif");
		m_01_m3_over = newImage("../images/m_01-m3_over.gif");
		m_01_m4_over = newImage("../images/m_01-m4_over.gif");
		m_01_m5_over = newImage("../images/m_01-m5_over.gif");
		preloadFlag = true;
	}
}