var header_html;

function hideScroll(id){
	if(document.getElementById(id).style.display == "none"){
		header_html = document.getElementById("headernewheader").innerHTML;
		document.getElementById("headernewheader").innerHTML = "";
		document.getElementById("readalltext").innerHTML = "閉じる▲";
		document.getElementById(id).style.display = "block";
	}
	else{
		document.getElementById("headernewheader").innerHTML = header_html;
		document.getElementById("readalltext").innerHTML = "最近の更新▼";
		document.getElementById(id).style.display = "none";
	}
}