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JavaScript method to add scrolling form with scroll bar_javascript skills

WBOYOriginal: 2016-05-16 15:14:161154browse

The example in this article describes how to add a scrolling form with a scroll bar in JavaScript. Share it with everyone for your reference, the details are as follows:

Two implementation methods:

First type:

<script type=/"text/javascript/">
function scrollImg(){
 var posX,posY;
 if (window.innerHeight) {
 posX = window.pageXOffset;
 posY = window.pageYOffset;
 }
 else if (document.documentElement && document.documentElement.scrollTop) {
 posX = document.documentElement.scrollLeft;
 posY = document.documentElement.scrollTop;
 }
 else if (document.body) {
 posX = document.body.scrollLeft;
 posY = document.body.scrollTop;
 }
 var ad=document.getElementById(/"ad/");
ad.style.top=(posY+500)+/"px/";
// ad.style.left=(posX+500)+/"px/";
ad.style.left=/"90%/";
 setTimeout(/"scrollImg()/",100);
}
</script>
<div id=/"ad/" style=/"position:absolute;background:#606060;width:100px;height:100px;border:1px dotted #000;line-height:100px;text-align:center; left: 103px; top: 911px;/">此广告位招租</div>
<script type=/"text/javascript/">
scrollImg();
</script>

Second type:

<html>
<head>
 <meta http-equiv=/"Content-Type/" content=/"text/html; charset=gb2312/">
 <title>Drag and Drop example</title>
 <script language=/"javascript/">
function picsize(obj,MaxWidth){
img=new Image();
img.src=obj.src;
if (img.width>MaxWidth)
{
 return MaxWidth;
}
else
{
 return img.width;
}
}
function CloseQQ()
{
divStayTopleft.style.display=/"none/";
return true; 
}
var online= new Array();
 </script>
</head>
<body>
 <div id=/"divStay/" style=/"position: absolute/">
 <table cellspacing=/"0/" cellpadding=/"0/" width=/"100%/" border=/"0/">
  <tbody>
  <tr>
   <td valign=/"top/" width=/"7%/">
   </td>
  </tr>
  </tbody>
 </table>
 </div>
 <div id=/"divStayTopleft/" style=/"position: absolute/">
 <table cellspacing=/"0/" cellpadding=/"0/" width=/"109/" border=/"0/">
  <tr>
  <td colspan=/"3/">
   <a onclick=/"CloseQQ()/" href=/"javascript:;/" shape=/"circle/" coords=/"91,16,12/">
   <img height=/"34/" src=/"images/qq_top.gif/" width=/"109/" usemap=/"#Map/"
    border=/"0/"></a></td>
  </tr>
  <tr>
  <td width=/"6/">
   <img height=/"100/" src=/"images/qq_life.gif/" width=/"6/"></td>
  <td valign=/"top/" width=/"96/" background=/"sto/qq_bg.gif/">
   <table cellspacing=/"0/" cellpadding=/"0/" width=/"90/" align=/"center/" border=/"0/">
   <tr>
    <td height=/"30/">
    <table cellspacing=/"0/" cellpadding=/"0/" width=/"90/" border=/"0/">
     <tr>
     <td>
      <img height=/"13/" src=/"images/qq_ico1.gif/" width=/"16/"><span
      class=/"font_12/"> <span style=/"font-size: 9pt/">客户服务</span></span></td>
     </tr>
    </table>
    </td>
   </tr>
   <tr>
    <td>
    <table border=/"0/" width=/"100%/" cellpadding=/"2/" id=/"table47/">
     <tr>
     <td width=/"15/" valign=/"top/" height=/"23/">
      <img border=/"0/" src=/"images/qq_v01.gif/" width=/"16/" height=/"16/"></td>
     <td valign=/"bottom/">
      <script>document.write(/"<a target=blank href=tencent://message/&#63;uin=178010108&Site=脚本之家&Menu=yes><img border=0 SRC=http://wpa.qq.com/pa&#63;p=1:615050000:10 alt=[脚本之家]></a>/");</script>
     </td>
     </tr>
    </table>
    </td>
   </tr>
   <tr>
    <td>
    </td>
   </tr>
   <tr>
    <td>
    <table border=/"0/" width=/"100%/" cellpadding=/"2/" id=/"table1/">
     <tr>
     <td width=/"15/" valign=/"top/" height=/"23/">
      <img border=/"0/" src=/"images/qq_n01.gif/" width=/"16/" height=/"16/"></td>
     <td valign=/"bottom/">
      <script>document.write(/"<a target=blank href=tencent://message/&#63;uin=251922268&Site=网页特效&Menu=yes><img border=0 SRC=http://wpa.qq.com/pa&#63;p=1:43486831:10 alt=[QQQQQ]></a>/");</script>
     </td>
     </tr>
    </table>
    </td>
   </tr>
   <tr>
    <td>
    </td>
   </tr>
   </table>
  </td>
  <td width=/"7/">
   <img height=/"100/" src=/"images/qq_right.gif/" width=/"7/"></td>
  </tr>
  <tr>
  <td colspan=/"3/">
   <img height=/"30/" src=/"images/qq_bottom1.gif/" width=/"109/"></td>
  </tr>
  <tr>
  <td colspan=/"3/">
   <img height=/"33/" src=/"images/qq_logo.gif/" width=/"109/"></td>
  </tr>
 </table>
 </div>
 <script type=/"text/javascript/">
function FloatTop()
{
var startX1 =document.body.offsetWidth-125 ,startY1 = 5;
var startX2 =0,startY2 = 95;
var ns = (navigator.appName.indexOf(/"Netscape/") != -1);
var d = document;
function ml(id,startX,startY)
{
var el=d.getElementById&#63;d.getElementById(id):d.all&#63;d.all[id]:d.layers[id];
if(d.layers)el.style=el;
el.sP=function(x,y){this.style.left=x;this.style.top=y;};
el.x = startX;
el.y = startY;
return el;
}
window.stayTopLeft=function()
{
var pY = ns &#63; pageYOffset : document.body.scrollTop;
ftlObj.y += (pY + startY1 - ftlObj.y)/8;
ftlObj1.y += (pY + startY2 - ftlObj1.y)/8;
ftlObj.sP(document.body.scrollLeft+document.body.offsetWidth-125, ftlObj.y);
ftlObj1.sP(ftlObj1.x, ftlObj1.y);
setTimeout(/"stayTopLeft()/", 30);
}
// ftlObj = ml(/"divStay/",document.body.scrollLeft+document.body.offsetWidth-125,0);
// ftlObj1 = ml(/"divStayTopLeft/",0,30);
ftlObj = ml(/"divStay/",(document.body.scrollLeft+document.body.offsetWidth)/2+379,0);
ftlObj1 = ml(/"divStayTopLeft/",(document.body.scrollLeft+document.body.offsetWidth)/2+379,30);
stayTopLeft();
}
FloatTop();
 </script>
</body>
</html>

Readers who are interested in more JavaScript-related content can check out the special topics on this site: "Summary of JavaScript search algorithm techniques", "Summary of JavaScript animation special effects and techniques", "Summary of JavaScript errors and debugging techniques", "Summary of JavaScript data structures and algorithm techniques", "Summary of JavaScript traversal algorithms and techniques" and "JavaScript Mathematics Summary of operation usage》

I hope this article will be helpful to everyone in JavaScript programming.

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