JavaScript gets common functions for window windows

Get window scroll bar height:

/*********************获取窗口滚动条高度******************/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;}

Gets the height of the window's viewable range:

/********************* 获取窗口可视范围的高度*******************/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;}

Get the actual height of the document content:

/********************* 获取文档内容实际高度*******************/function getScrollHeight(){return Math.max(document.body.scrollHeight,document.documentElement.scrollHeight);}

JavaScript gets common functions for window windows