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<script language="JavaScript" type="text/JavaScript">
<!--
        function displayScreenSize()
        {
            var bodyWidth           =document.body.clientWidth;               //ÍøÒ³¿É¼ûÇøÓò¿í
            var bodyHeight          =document.body.clientHeight;              //ÍøÒ³¿É¼ûÇøÓò¸ß
            var bodyWidthWithBorder =document.body.offsetWidth;      //ÍøÒ³¿É¼ûÇøÓò¿í(°üÀ¨±ßÏߵĿí)
            var bodyHeightWithBorder=document.body.offsetHeight;     //ÍøÒ³¿É¼ûÇøÓò¸ß(°üÀ¨±ßÏߵĿí)
            var bodyWidthWithScroll =document.body.scrollWidth;         //ÍøÒ³ÕýÎÄÈ«ÎÄ¿í
            var bodyHeightWithScroll=document.body.scrollHeight;        //ÍøÒ³ÕýÎÄÈ«Îĸߠ
            var bodyTopHeight       =document.body.scrollTop;               //ÍøÒ³±»¾íÈ¥µÄÉϱ߾à
            var bodyLeftWidth       =document.body.scrollLeft;               //ÍøÒ³±»¾íÈ¥µÄ×ó±ß¾à