$(document).ready(function(){
	var key  = $("div.news ul.button li");
	var obj = $("div.news div.news-child");
	var prev = 0;
	key.each(function(index,item){
		if(index == 0) item.className = "current";
		item.onclick = function(){
			obj[prev].style.display = "none";
			obj[index].style.display = "block";
			this.className = "current";
			if(index != prev) key[prev].className = key[prev].className.replace("current","");
			prev = index;
		}
		item.onmouseover = function(){ this.className = "current"; }
		item.onmouseout = function(){ if(index != prev) this.className = this.className.replace("current",""); }
	});
});