function manudown(num)
	{
		
		
		document.getElementById('daohangbox'+num).style. background ='#2B6484';
	}
function manuup(num)
	{
		
		
		document.getElementById('daohangbox'+num).style. background ='#808080';
		
	}
function duiqi()
{
	var left = document.getElementById("news_body_left");
	var right = document.getElementById("news_body_right");
	if(right.offsetHeight<left.offsetHeight)
	{
		right.style.height = left.offsetHeight+"px";
	}
	if(right.offsetHeight>left.offsetHeight)
	{
		left.style.height = right.offsetHeight+"px";
	}	
	
}