$(document).ready(function(){
	var url = location.href;
	var target = url.match("^https?:\/\/" + location.hostname + "/(.+)/.*$");
	if(target) {
			var src = $('#gnavi .' + target[1] + ' a img').attr('src');
			if(src) {
					$('#gnavi .' + target[1] + ' a img').attr('src', src.replace(/\.jpg/, "_on.jpg"));
			}
	} else {
		 $('#gnavi .top a img').attr('src', $('#gnavi .top a img').attr('src').replace(/\.jpg/, "_on.jpg"));
	}
	$('#gnavi a img,#nav a img,.banner a img').rollover();													
});