var navifolder = "../images.japan.two.state/"; 
    
    var japanimagesbuttonslo = new Array(japanimages.length);
    var japanimagesbuttonshi = new Array(japanimages.length);

	for (i = 0;  i < japanimages.length;  i++) {
		japanimagesbuttonslo[japanimages[i]] = new Image();
		japanimagesbuttonslo[japanimages[i]].src = navifolder + japanimages[i] + ".lo.png";
		japanimagesbuttonshi[japanimages[i]] = new Image();
		japanimagesbuttonshi[japanimages[i]].src = navifolder + japanimages[i] + ".hi.png";
	}
    
    function japanimagesbuttonhi(name) {
        document.images[name].src = japanimagesbuttonshi[name].src;
        return true;
    }
    function japanimagesbuttonlo(name) {
        document.images[name].src = japanimagesbuttonslo[name].src;
        return true;
    }