JavaScript獲得頁面地區大小的代碼

原文地址：http://andrewdupont.net/2006/09/09/viewport-dimensions-in-javascript/

一個JavaScript獲得頁面地區大小的代碼，相容性很好！

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print?01. var Client = { 02.      viewportWidth: function() { 03.        return self.innerWidth || (document.documentElement.clientWidth || document.body.clientWidth); 04.      }, 05.   06.      viewportHeight: function() { 07.        return self.innerHeight || (document.documentElement.clientHeight || document.body.clientHeight); 08.      }, 09.   10.      viewportSize: function() { 11.        return { width: this.viewportWidth(), height: this.viewportHeight() }; 12.      } 13.     };