function read_banner() {
    var filename = "/scr/read_banner.php";
    new Ajax.Request(filename, {method: 'get', onComplete: showBanner});

}
function showBanner(httpObj) {
	$("banner_area").innerHTML = httpObj.responseText;
}
function read_footer() {
    var filename = "/scr/read_footer.php";
    new Ajax.Request(filename, {method: 'get', onComplete: showFooter});

}
function showFooter(httpObj) {
	$("footer").innerHTML = httpObj.responseText;
}