JQuery獲取頁面高度，頁面寬度，窗口高度，窗口寬度
- 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;
- };
