js 和 jquery 获取页面和滚动条的高度
?
//页面位置及窗口大小
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};
};
//滚动条位置
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};
}
jquery
获取浏览器显示区域的高度 :?
$(window).height();?
获取浏览器显示区域的宽度 :$(window).width();?
获取页面的文档高度?
:$(document).height();?
获取页面的文档宽度 :$(document).width();
获取滚动条到顶部的垂直高度?
:$(document).scrollTop();?
获取滚动条到左边的垂直宽度 :$(document).scrollLeft();?
计算元素位置和偏移量?
offset方法是一个很有用的方法,它返回包装集中第一个元素的偏移信息。默认情况下是相对body的偏移信息。结果包含 top和left两个属性。
offset(options, results)?
options.relativeTo 指定相对计?
算偏移位置的祖先元素。这个元素应该是relative或absolute定位。省略则相对body。?
options.scroll 是否把?
滚动条计算在内,默认TRUE?
options.padding 是否把padding计算在内,默认false?
options.margin?
是否把margin计算在内,默认true?
options.border 是否把边框计算在内,默认true
?
http://www.cnblogs.com/hoojo/archive/2012/02/16/2354663.html
alert($(window).height()); //浏览器当前窗口可视区域高度
alert($(document).height()); //浏览器当前窗口文档的高度
alert($(document.body).height());//浏览器当前窗口文档body的高度
alert($(document.body).outerHeight(true));//浏览器当前窗口文档body的总高度 包括border padding margin
alert($(window).width()); //浏览器当前窗口可视区域宽度
alert($(document).width());//浏览器当前窗口文档对象宽度
alert($(document.body).width());//浏览器当前窗口文档body的高度
alert($(document.body).outerWidth(true));//浏览器当前窗口文档body的总宽度 包括border padding margin
?
// 获取页面的高度、宽度
function getPageSize() {
var xScroll, yScroll;
if (window.innerHeight && window.scrollMaxY) {
xScroll = window.innerWidth + window.scrollMaxX;
yScroll = window.innerHeight + window.scrollMaxY;
} else {
if (document.body.scrollHeight > document.body.offsetHeight) { // all but Explorer Mac
xScroll = document.body.scrollWidth;
yScroll = document.body.scrollHeight;
} else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
xScroll = document.body.offsetWidth;
yScroll = document.body.offsetHeight;
}
}
var windowWidth, windowHeight;
if (self.innerHeight) { // all except Explorer
if (document.documentElement.clientWidth) {
windowWidth = document.documentElement.clientWidth;
} else {
windowWidth = self.innerWidth;
}
windowHeight = self.innerHeight;
} else {
if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
windowWidth = document.documentElement.clientWidth;
windowHeight = document.documentElement.clientHeight;
} else {
if (document.body) { // other Explorers
windowWidth = document.body.clientWidth;
windowHeight = document.body.clientHeight;
}
}
}
// for small pages with total height less then height of the viewport
if (yScroll < windowHeight) {
pageHeight = windowHeight;
} else {
pageHeight = yScroll;
}
// for small pages with total width less then width of the viewport
if (xScroll < windowWidth) {
pageWidth = xScroll;
} else {
pageWidth = windowWidth;
}
arrayPageSize = new Array(pageWidth, pageHeight, windowWidth, windowHeight);
return arrayPageSize;
}
?
// 滚动条
document.body.scrollTop;
$(document).scrollTop();