[b]//页面位置及窗口大小[/b] function GetPageSize() { var scrW, scrH; if(window.innerHeight && window.scrollMaxY) {    // Mozilla    scrW = window.innerWidth + window.scrollMaxX;    scrH = window.innerHeight + window.scrollMaxY; } else if(document.body.scrollHeight > document.body.offsetHeight) {    // all but IE Mac    scrW = document.body.scrollWidth;    scrH = document.body.scrollHeight; } else if(document.body) { // IE Mac    scrW = document.body.offsetWidth;    scrH = document.body.offsetHeight; } var winW, winH; if(window.innerHeight) { // all except IE    winW = window.innerWidth; winH = window.innerHeight; } else if (document.documentElement && document.documentElement.clientHeight) {    // IE 6 Strict Mode    winW = document.documentElement.clientWidth;     winH = document.documentElement.clientHeight; } else if (document.body) { // other    winW = document.body.clientWidth;    winH = document.body.clientHeight; }    // for small pages with total size less then the viewport var pageW = (scrW<winW) ? winW : scrW; var pageH = (scrH<winH) ? winH : scrH;    return {PageW:pageW, PageH:pageH, WinW:winW, WinH:winH}; }; [b]//滚动条位置 [/b]function GetPageScroll() { var x, y; if(window.pageYOffset) {    // all except IE    y = window.pageYOffset;    x = window.pageXOffset; } else if(document.documentElement && document.documentElement.scrollTop) {    // IE 6 Strict    y = document.documentElement.scrollTop;    x = document.documentElement.scrollLeft; } else if(document.body) {    // all other IE    y = document.body.scrollTop;    x = document.body.scrollLeft;   } return {X:x, Y:y}; }