function controlImg(ele,w,h)
{ 
	var c=ele.getElementsByTagName("img"); 
	for(var i=0;i<c.length;i++)
	{ 
		var w0=c[i].clientWidth,h0=c[i].clientHeight; 
		var t1=w0/w,t2=h0/h; 
		if(t1>1||t2>1)
		{ 
			c[i].width=Math.floor(w0/(t1>t2?t1:t2)); 
			c[i].height=Math.floor(h0/(t1>t2?t1:t2)); 
			if(document.all)
			{ 
				c[i].outerHTML='<a href="'+c[i].src+'" target="_blank" title="查看原图">'+c[i].outerHTML+'</a>' 
			} 
			else
			{ 
				c[i].title="查看原图"; 
				c[i].onclick=function(e){window.open(this.src)} 
			} 
		} 
	} 
}