关于框架的问题
俺想实现点击框架顶部叶一按钮，左边的框架页隐藏起来，当再次点击顶部框架页时，左边的框架页又出现，在左边的框架页隐藏起来时，右边的框架页自动占领左边的区域，请高手指点。谢
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楼主要的是这种效果吧？以上是源代码。