我们以腾讯QQ网页在线客服为例，大家将代码拷到DW中，用心体会。
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>图片随网页上下移动的代码实例</title>
</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>
<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>
<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="../Uploadfile/qq_top.gif" width="109" usemap="#Map" border="0"></a></td>
</tr>
<tr>
<td width="6"><img height="100" src="../Uploadfile/qq_life.gif" width="6"></td>
<td valign="top" width="96" background="../Uploadfile/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="../Uploadfile/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="../Uploadfile/qq_v01.gif" width="16" height="16"></td>
<td valign="bottom"><script>document.write("<a target=blank href=tencent://message/?uin=615050000&Site=网页特效观止&Menu=yes><img border=0 SRC=http://wpa.qq.com/pa?p=1:615050000:10 alt=[小Q]></a>");</script></td>
</tr>
</table>
</td>
</tr>
<tr>
<td></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="../Uploadfile/qq_n01.gif" width="16" height="16"></td>
<td valign="bottom"><script>document.write("<a target=blank href=tencent://message/?uin=43486831&Site=网页特效观止&Menu=yes><img border=0 SRC=http://wpa.qq.com/pa?p=1:43486831:10 alt=[这是在远方原来的qq被现在这个人盗了]></a>");</script></td>
</tr>
</table>
</td>
</tr>
<tr>
<td></td>
</tr>
</table>
</td>
<td width="7"><img height="100" src="../Uploadfile/qq_right.gif" width="7"></td>
</tr>
<tr>
<td colspan="3">
<img height="30" src="../Uploadfile/qq_bottom1.gif" width="109"></td>
</tr>
<tr>
<td colspan="3">
<img height="33" src="../Uploadfile/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?d.getElementById(id):d.all?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 ? 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>
<!--End: QQ在线客服 -->
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
</body>
</html>
