function header_banner(){
	new Ajax.Request("/banner/header_banner.php",{
	method:'POST',
	onSuccess:get_res,
	onFailure:error});

	function get_res(req){
		$("header_banner").innerHTML = "";
		xml = req.responseXML;
		res = xml.getElementsByTagName("content")[0].firstChild.nodeValue;
		$("header_banner").innerHTML += res;
	}

	function error(req){
	}
}

function footer_banner(){
	new Ajax.Request("/banner/footer_banner.php",{
	method:'POST',
	onSuccess:get_res,
	onFailure:error});

	function get_res(req){
		$("footer_banner").innerHTML = "";
		xml = req.responseXML;
		res = xml.getElementsByTagName("content")[0].firstChild.nodeValue;
		$("footer_banner").innerHTML += res;
	}

	function error(req){
	}
}