css层滚动条 - NICE源码网

css层滚动条

<html> <head><title>层滚动条DIY – Powered by yexj00</title> <style> <!– *{ font-size: 12px} –> </style> <script language=”Javascript”> <!– function $(obj){ return document.all[obj]; } function setbarHeight(){ $(“scroll_bar”).style.height=($(“scroll_content”).clientHeight)/($(“scroll_content”).scrollHeight)*($(“scroll_area”).offsetHeight)+”px”; if($(“scroll_bar”).offsetHeight>=$(“scroll_area”).offsetHeight){ $(“scroll_bar”).style.display=’none’; } } //–> </script> <script language=”Javascript”> <!– var drag=false; //是否允许拖动 var mx,my; var scrollbar_L; var scrollbar_T; var scrollbar_W; var scrollbar_H; var scrollarea_T,scrollarea_H; var startT,startY; function getInfor(){ mx=event.clientX+document.documentElement.scrollLeft; my=event.clientY+document.documentElement.scrollTop; scrollbar_L=document.documentElement.clientLeft+$(“outerDiv”).style.pixelLeft+$(“scroll_area”).offsetLeft+$(“scroll_bar”).offsetLeft; scrollbar_T=document.documentElement.clientTop+$(“outerDiv”).style.pixelTop+$(“scroll_area”).offsetTop+$(“scroll_bar”).offsetTop; scrollbar_W=$(“scroll_bar”).offsetWidth; scrollbar_H=$(“scroll_bar”).offsetHeight; scrollarea_T=document.documentElement.clientTop+$(“outerDiv”).style.pixelTop+$(“scroll_area”).offsetTop; scrollarea_H=$(“scroll_area”).offsetHeight; } function dragit(){ getInfor(); if(event.srcElement.id==”scroll_bar”){ drag=true; $(“scroll_bar”).style.background=”#cccccc”; startT=$(“scroll_bar”).style.pixelTop; startY=event.clientY; document.onmousemove=move; } } function move(){ if(drag==true){ $(“scroll_bar”).style.pixelTop=startT+event.clientY-startY; $(“scroll_content”).scrollTop=$(“scroll_bar”).style.pixelTop/$(“scroll_area”).offsetHeight*$(“scroll_content”).scrollHeight; if($(“scroll_bar”).style.pixelTop<=0){ $(“scroll_bar”).style.pixelTop=0} if($(“scroll_bar”).style.pixelTop>=(scrollarea_H-scrollbar_H)){ $(“scroll_bar”).style.pixelTop=scrollarea_H-scrollbar_H; } return false; } } document.onmousedown=dragit; document.onmouseup=new Function(“drag=false;$(‘scroll_bar’).style.background=’#efefef'”); //–> </script> </head> <body onload=”setbarHeight()”> <div id=”outerDiv” style=”position:absolute; left:100px; top:50px; width:130px; height:130px”> <div id=”scroll_content” style=”position:absolute; padding:2px; left:2px; top:5px; width:100px; height:100px; border:1px solid #cccccc; overflow: hidden”> <!– 这是层的内容区 –> <script language=”Javascript”> <!– var str=”这个是用层做的滚动条,Powered by yexj00!”; str=str.split(“”); for(i=0;i<str.length;i++){ document.write(str[i]+” <br>”); } //–> </script> <!– 层的内容区结束 –> </div> <div id=”up_btt” style=”position:absolute; left:104px; top:5px; width:8px; height:16px; background:#efefef; font-size:0px;border:1px outset #cccccc”></div> <div id=”scroll_area” style=” position:absolute; left:104px; top:22px; width:8px; height:66px;font-size:0px; background:#efefef”> <div id=”scroll_bar” style=”position:absolute; left:0px; top:0px; width:8px; background:#efefef; font-size:0px;border:1px outset #cccccc”></div> </div> <div id=”down_btt” style=”position:absolute; left:104px; top:89px; width:8px; height:16px; background:#efefef;font-size:0px; border:1px outset #cccccc”></div> </div> </body> </html>

[Ctrl+A 全选注:引入外部Js需再刷新一下页面才能执行]

微信