function changeNew(){
	var n=document.getElementById("newArticle");
	var h=document.getElementById("hotArticle");
	n.style.display="";
	h.style.display="none";
}
function changeHot(){
	var n=document.getElementById("newArticle");
	var h=document.getElementById("hotArticle");
	n.style.display="none";
	h.style.display="";
}