function imgZoom(n,w,h){
				var o=new Image();o.src=n.src;
				function wz(){n.width=w;n.height=w/o.width*o.height;}
				function hz(){n.width=h/o.height*o.width;n.height=h;}
				if(w&&!h)wz();if(!w&&h)hz();if(w&&h)o.width>o.height?wz():hz();delete o;
			}