function?getStyle(obj,attr){
	if(obj.currentStyle){
		return?obj.currentStyle[attr];
	}
	else{
		return?getComputedStyle(obj,null)[attr];
	}
}

function?mover(){
	var?box=document.getElementById("box");
	box.timer=null;
	box.onmouseover=function(){
		star(box,"width",400);
	}
	box.onmouseout=function(){
		star(box,"width",200);
	}
}


function?star(obj,attr,target)
{
	clearInterval(obj.timer);
		
	obj.timer=setInterval(function(){
		
		
		
			var??who=obj.offsetWidth;
//		who=parseInt(getStyle(obj,attr));
		

		var?speed=(target-who)/8;
		
		
??speed=speed>0?Math.ceil(speed):Math.floor(speed);
		
		
		if(who==target)
		{
			clearInterval(obj.timer);
			
		}
		
		document.getElementById("id1").innerHTML=who;
		document.getElementById("id2").innerHTML=speed;
		obj.style[attr]=who+speed+"px";
		
		
	},30);
	

	
}

還是395 取整了也沒有 ? 代碼我一個(gè)個(gè)對(duì)了也沒問題 ? 在ie下 可以到達(dá)400沒有問題 ?谷歌下就不行？