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function getScrollTop()
{
var scrollTop=0;
if(document.documentElement&&document.documentElement.scrollTop)
{
scrollTop=document.documentElement.scrollTop;
}
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{
scrollTop=document.body.scrollTop;
}
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}
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function getClientHeight()
{
var clientHeight=0;
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{
var clientHeight = (document.body.clientHeight<document.documentElement.clientHeight)?document.body.clientHeight:document.documentElement.clientHeight;
}
else
{
var clientHeight = (document.body.clientHeight>document.documentElement.clientHeight)?document.body.clientHeight:document.documentElement.clientHeight;
}
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}
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function getScrollHeight()
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}
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