如何定位到div滚动条的最底端 

function ScrollDiv() {    
    var ex = document.getElementById("calm");  
        ex.scrollTop = ex.scrollHeight;   
 }

obj.scrollTop：滚动条距离顶部的位置
obj.scrollHeight：流动区域的高度

 

给DIV添加滚动条
直接为div指定overflow属性为auto即可，但是必须指定div的高度，如下：
<div style="position:absolute; height:400px; overflow:auto">
</div>
如果要出现水平滚动条，则： overflow-x:auto
同理，垂直滚动条为： overflow-y:auto
如果该div被包含在其他对象例如td中，则位置可设为相对：position:relative
<HTML> 
<HEAD> 
<TITLE>测试表格内的滚动条</TITLE> 
</HEAD> 

<BODY> 
<table>
  <tr>
    <td>表格内的滚动条:</td>
    <td>
      <div id="wins" 
        style="position:absolute;height:200;width:200;overflow:auto;background:#EEEEEE;"> 
        <p>pppppppppppppppppppppppppppppppppppppppppppppppppp </p> 
        <p>pppppppppppppppppppppppppppppppppppppppppppppppppp </p> 
        <p>ppppppppppppppppppppppppp </p> 
        <p>ppppppppppppppppppppppppp </p> 
        <p>ppppppppppppppppppppppppp </p> 
        <p>ppppppppppppppppppppppppp </p> 
        <p>ppppppppppppppppppppppppp </p> 
        <p>ppppppppppppppppppppppppp </p> 
        <p>ppppppppppppppppppppppppp </p> 
        <p>ppppppppppppppppppppppppp </p> 
        <p>ppppppppppppppppppppppppp </p> 
        <p>ppppppppppppppppppppppppp </p> 
      </div>
    </td>
  </tr>
  <tr>
    <td colspan="2" align="right">
      <span onmouseover='scrollb=setInterval("wins.scrollLeft-=10",100)' 
                 onmouseout=clearInterval(scrollb)>向左</span> 
            <span onmouseover='scrollb=setInterval("wins.scrollTop-=10",100)' 
                        onmouseout=clearInterval(scrollb)>向上</span>
      <span onmouseover='scrollb=setInterval("wins.scrollLeft+=10",100)' 
                 onmouseout=clearInterval(scrollb)>向右</span>
      <span onmouseover='scrollb=setInterval("wins.scrollTop+=10",100)' 
                 onmouseout=clearInterval(scrollb)>向下</span>
    </td>
  </tr>
</table>
</BODY> 
</HTML>

 

 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<title>JS控制DIV滚动条</title>

</head>

<script>

function scrollup()

{

document.getElementById('div1').scrollTop = document.getElementById('div1').scrollTop-25;

}

function scrolldown()

{

document.getElementById('div1').scrollTop = document.getElementById('div1').scrollTop+25;

}

function scrolltop()

{

document.getElementById('div1').scrollTop = 0;

}

function scrollbottom()

{

document.getElementById('div1').scrollTop = document.getElementById('div1').scrollHeight;

}

</script>

<style>

.div1

{

height:200px;

overflow-y:scroll;

width:400px;

border:solid 1px #ccc;

}

</style>

<body>

<div class="div1" id="div1"><br />

start<br />

<br /><br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

middle<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

<br />

end<br />

 

</div>

<input name="" type="button"  value="向上"/ onclick="scrollup();">

<input name="" type="button"  value="向下" onclick="scrolldown();"/>

<input name="" type="button"  value="顶"/ onclick="scrolltop();">

<input name="" type="button"  value="底" onclick="scrollbottom();"/>

</body>

</html>

 

posted on 2013-09-22 17:16  andydaopeng  阅读(1739)  评论(0)  编辑  收藏  举报

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