// Preload

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) {
m1_here = newImage('images/m1_here.gif');
m2_here = newImage('images/m2_here.gif');
m3_here = newImage('images/m3_here.gif');
m4_here= newImage('images/m4_here.gif');
m5_here = newImage('images/m5_here.gif');
m6_here = newImage('images/m6_here.gif');
m7_here = newImage('images/m7_here.gif');
		preloadFlag = true;
	}
}