javascript擷取window視窗常用函數

標籤：javascript擷取window視窗

擷取視窗捲軸高度：

/*********************擷取視窗捲軸高度******************/function getScrollTop(){var scrollTop=0;if(document.documentElement&&document.documentElement.scrollTop){    scrollTop=document.documentElement.scrollTop;}else if(document.body){    scrollTop=document.body.scrollTop;}return scrollTop;}

擷取視窗可視範圍的高度：

/********************* 擷取視窗可視範圍的高度*******************/function getClientHeight(){var clientHeight=0;if(document.body.clientHeight&&document.documentElement.clientHeight){    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;}return clientHeight;}

擷取文檔內容實際高度：

/********************* 擷取文檔內容實際高度*******************/function getScrollHeight(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight);}

javascript擷取window視窗常用函數