function sw_news(obj){
	var sw_a=$(".sw_a");
	var sw_c=$(".news_type");
	sw_a.each(function(k,v){
		if(obj==v){
			v.style.background="url('/images/sw_a_bg.jpg')";
			//v.style.fontWeight="bold";
			v.style.color="#744b45";
			sw_c[k].style.display="";
			}
			else{
			sw_c[k].style.display="none";
			$(this).css('background',"url('/images/sw_a_bg1.jpg')");	
			//$(this).css('fontWeight',"normal");	
			$(this).css('color',"#666666");	
			}
		})
	}
function getPA(){
now = new Date();
hour = now.getHours();
if(hour < 6){document.write("凌晨好")}
else if (hour < 9){document.write("早上好")}
else if (hour < 12){document.write("上午好")}
else if (hour < 14){document.write("中午好")}
else if (hour < 17){document.write("下午好")}
else if (hour < 19){document.write("傍晚好")}
else if (hour < 22){document.write("晚上好")}
else {document.write("夜里好")}
	}