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function(){ return{ top:function(){return
document.documentElement.scrollTop||document.body.scrollTop}, width:function(){return
self.innerWidth||document.documentElement.clientWidth||document.body.clientWidth}, height:function(){return
self.innerHeight||document.documentElement.clientHeight||document.body.clientHeight}, total:function(d){ var
b=document.body, e=document.documentElement; return
d?Math.max(Math.max(b.scrollHeight,e.scrollHeight),Math.max(b.clientHeight,e.clientHeight)): Math.max(Math.max(b.scrollWidth,e.scrollWidth),Math.max(b.clientWidth,e.clientWidth)) } }}(); |
原文：http://www.cnblogs.com/qqloving/p/3620834.html