Js鼠标跟随代码小手点击实例方法_javascript技巧

<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>可爱的鼠标跟随</title> <style> html{ background:#000;} body,html,input{ cursor:none;} body,html{ height:100%;} #cursor{ position:absolute; left:100px; top:100px; display:block;} </style> <script> window.onload = function(){ var oCursor = document.getElementById("cursor"); document.onmousemove=function (ev){ var oEvent=ev||event, oWidth = document.documentElement.clientWidth, oHeight = document.documentElement.clientHeight, scrollTop=document.documentElement.scrollTop + oEvent.clientY, scrollLeft=document.documentElement.scrollLeft + oEvent.clientX; if(scrollTop > oHeight-oCursor.offsetHeight){ oCursor.style.top = oHeight-oCursor.offsetHeight+'px'; }else if(scrollTop < 0){ oCursor.style.top = 0; }else{ oCursor.style.top = scrollTop+'px'; } if(scrollLeft > oWidth-oCursor.offsetWidth){ oCursor.style.left = oWidth-oCursor.offsetWidth+'px'; }else{ oCursor.style.left = scrollLeft+'px'; } document.onmousedown = function(){ oCursor.innerHTML = "<img src='http://www.jb51.net/jscss/demoimg/201305/cursor_hover.png' / alt="Js鼠标跟随代码小手点击实例方法_javascript技巧" >"; return false; } document.onmouseup = function(){ oCursor.innerHTML = "<img src='http://www.jb51.net/jscss/demoimg/201305/cursor.png' / alt="Js鼠标跟随代码小手点击实例方法_javascript技巧" >"; } }; } </script> <div id="cursor"><img src="http://www.jb51.net/jscss/demoimg/201305/cursor.png" alt="Js鼠标跟随代码小手点击实例方法_javascript技巧" ></div> <input type="button" style="font-size:36px; margin:100px;" value="点击" onclick="window.open('http://www.jb51.net')">
[Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]