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) {
		usa_over=newImage("images/usa-over.gif");
		turkey_over=newImage("images/turkey-over.gif");
		senegal_over=newImage("images/senegal-over.gif");
		saudi_over=newImage("images/saudi-over.gif");
		panama_over=newImage("images/panama-over.gif");
		oman_over=newImage("images/oman-over.gif");
		nigeria_over=newImage("images/nigeria-over.gif");
		nicaragua_over=newImage("images/nicaragua-over.gif"); 
		mosambique_over=newImage("images/mosambique-over.gif");
		morocco_over=newImage("images/morocco-over.gif");
		mexico_over=newImage("images/mexico-over.gif"); 
		mauritana_over=newImage("images/mauritana-over.gif");
		malawai_over=newImage("images/malawai-over.gif");
		malasia_over=newImage("images/malasia-over.gif");
		haiti_over=newImage("images/haiti-over.gif");
		ghana_over=newImage("images/ghana-over.gif");
		gambia_over=newImage("images/gambia-over.gif");
		gabon_over=newImage("images/gabon-over.gif");	
		dubai_over=newImage("images/dubai-over.gif");
		congo_over=newImage("images/congo-over.gif"); 
		brazil_over=newImage("images/brazil-over.gif");
		benin_over=newImage("images/benin-over.gif");
		yemen_over=newImage("images/yemen-over.gif");
		guniea_over=newImage("images/guniea-over.gif");
		ivory_over=newImage("images/ivory-over.gif");
		tanzania_over=newImage("images/tanzania-over.gif");
		preloadFlag = true;
	}
}