圖片按比例顯示

<script>
//按比例顯示圖片
//引用方法：
//<img id="myPic1" οnerrοr="drawImg(this,120,60);" οnlοad="drawImg(this,120,60);" src="http://www.hao123.com/logo.gif"/>
//οnerrοr="drawImg(this,120,60);" 加載出錯照樣執行
//覃雁祿2007-01-25
function drawImg(obj,FitWidth,FitHeight){
  var image=obj;
  if(image.width>0 && image.height>0){
    if(image.width/image.height>= FitWidth/FitHeight){
      if(image.width>FitWidth){
        image.width=FitWidth;
        image.height=(image.height*FitWidth)/image.width;
      }
    }
    else{
      if(image.height>FitHeight){
        image.height=FitHeight;
        image.width=(image.width*FitHeight)/image.height;
      }
    }
  }
}
</script>