<!--


//菜单
function showMenu(n){
	
	var smenudiv = document.getElementById("smenu");
	obj=smenudiv.getElementsByTagName("ul");
	var maindiv=document.getElementById("mainmenu");
	mainwidth=maindiv.offsetWidth;
 	for(var i=0;i<obj.length;i++){
		if(i==n){
			obj[i].style.display="block";
			var swidth=0;
			for(j=0;j<obj[i].getElementsByTagName("li").length;j++)
			{
				swidth+=obj[i].getElementsByTagName("li")[j].offsetWidth;
			}
			if(swidth<900)
			{
				movePos=(95*(n+1)+6)-swidth/2;
				if(movePos+swidth>mainwidth)
				movePos=mainwidth-swidth;
				obj[i].style.marginLeft=movePos+"px";
			}
			else
			obj[i].style.marginLeft="5px";
			
			document.getElementById("mainmenu").getElementsByTagName("a")[i].className='current';
			
		}else{
			obj[i].style.display="none";
			document.getElementById("mainmenu").getElementsByTagName("a")[i].className='';
		}
		
	}

}


-->