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) {
		map_01_Haiti_over = newImage("images/map_01-Haiti_over.gif");
		map_01_Panama_over = newImage("images/map_01-Panama_over.gif");
		map_01_Nicaragua_over = newImage("images/map_01-Nicaragua_over.gif");
		map_01_Venezuela_over = newImage("images/map_01-Venezuela_over.gif");
		map_01_Mexico_over = newImage("images/map_01-Mexico_over.gif");
		map_01_Guatemala_over = newImage("images/map_01-Guatemala_over.gif");
		map_01_El_Salvador_over = newImage("images/map_01-El-Salvador_over.gif");
		map_01_Honduras_over = newImage("images/map_01-Honduras_over.gif");
		preloadFlag = true;
	}
}