具有滚动条的div

    <style type="text/css">
    body{
        font-family: Trebuchet MS, Lucida Sans Unicode, Arial, sans-serif;
    }
    p{
        margin-top:0px;
    }
    #dhtmlgoodies_scrolldiv{
        /**//* The total width of the scrolling div including scrollbar */
        width:530px;
        height:500px;    /**//* The height of the scrolling div */
    }
    #scrolldiv_parentContainer{
        width:500px;    /**//* Width of the scrolling text */
        height:100%;
        overflow:hidden;
        border:1px solid #BC8FBD;
        float:left;
        position:relative;
    }
    
    /**//*
    CSS for the scrolling content 
    */
    #scrolldiv_content{
        padding: 5px;
        position:relative;
        font-family: Trebuchet MS, Lucida Sans Unicode, Arial, sans-serif;
        font-size: 0.9em;
        line-height:130%;
        color: #333;
    }
    
    /**//*
    The scrollbar slider 
    */
    #scrolldiv_slider{
        width:15px;
        margin-left:2px;
        height:500px;
        float:left;
    }
    
    /**//*
    The scrollbar (The bar between the up and down arrow )
    */
    #scrolldiv_scrollbar{
        width:15px;
        height:460px;    /**//* Total height - 40 pixels */
        border:1px solid #BC8FBD;
        position:relative;
        
    }
    /**//*
    The scrollbar handle
    */
    #scrolldiv_theScroll{
        margin:1px;
        width:13px;
        height:13px;
        background-color:#BC8FBD;
        position:absolute;    
        top:0px;
        left:0px;
        cursor:pointer;
    }
    /**//*
    Scroll buttons(The up and down arrows)
    */
    #scrolldiv_scrollUp,#scrolldiv_scrollDown{
        width:15px;
        height:16px;
        border:1px solid #BC8FBD;
        color: #BC8FBD;
        text-align:center;
        font-size:16px;
        line-height:16px;
        cursor:pointer;
    }
    #scrolldiv_scrollUp{
        margin-bottom:2px;
    }
    #scrolldiv_scrollDown{
        margin-top:2px;
    }
    #scrolldiv_scrollDown span,#scrolldiv_scrollUp span{
        font-family: Symbol;
    }

    </style>
    <script type="text/javascript">
    /**//************************************************************************************************************
    (C) www.dhtmlgoodies.com, September 2005
    
    This is a script from www.dhtmlgoodies.com. You will find this and a lot of other scripts at our website.    
    
    Terms of use:
    You are free to use this script as long as the copyright message is kept intact. However, you may not
    redistribute, sell or repost it without our permission.
    
    Thank you!
    
    www.dhtmlgoodies.com
    Alf Magne Kalleland
    
    ************************************************************************************************************/    
    var contentHeight = 0;     // The total height of the content
    var visibleContentHeight = 0;    
    var scrollActive = false;
    
    var scrollHandleObj = false; // reference to the scroll handle
    var scrollHandleHeight = false;
    var scrollbarTop = false;
    var eventYPos = false;

    var scrollbuttonActive = false;
    var scrollbuttonDirection = false;
    var scrollbuttonSpeed = 2; // How fast the content scrolls when you click the scroll buttons(Up and down arrows)
    var scrollTimer = 10;    // Also how fast the content scrolls. By decreasing this value, the content will move faster    
    
    var scrollMoveToActive = false;
    var scrollMoveToYPosition = false;
    function scrollDiv_startScroll(e)
    {
        if(document.all)e = event;
        scrollbarTop = document.getElementById('scrolldiv_theScroll').offsetTop;
        eventYPos = e.clientY;
        scrollActive = true;
    }
    
    function scrollDiv_stopScroll()
    {
        scrollActive = false;
        scrollbuttonActive = false;
        scrollMoveToActive = false;
    }
    function scrollDiv_scroll(e)
    {
        if(!scrollActive)return;
        if(document.all)e = event;
        if(e.button!=1 && document.all)return;
        var topPos = scrollbarTop + e.clientY - eventYPos; 
        if(topPos<0)topPos=0;
        if(topPos/1>visibleContentHeight-(scrollHandleHeight+4)/1)topPos = visibleContentHeight-(scrollHandleHeight+4);
        document.getElementById('scrolldiv_theScroll').style.top = topPos + 'px';
        document.getElementById('scrolldiv_content').style.top = 0 - Math.floor((contentHeight) * ((topPos)/(visibleContentHeight-scrollHandleHeight)))+'px' 
    }
    
    /**//*
    Click on the slider
    Move the content to the this point
    */
    function scrolldiv_scrollMoveToInit(e)
    {        
        if(document.all)e = event;
        scrollMoveToActive = true;
        scrollMoveToYPosition = e.clientY - document.getElementById('scrolldiv_scrollbar').offsetTop;
        if(document.getElementById('scrolldiv_theScroll').offsetTop/1 > scrollMoveToYPosition) scrollbuttonDirection = scrollbuttonSpeed*-2; else  scrollbuttonDirection = scrollbuttonSpeed*2;
        scrolldiv_scrollMoveTo();    
    }
    
    function scrolldiv_scrollMoveTo()
    {
        if(!scrollMoveToActive || scrollActive)return;
        var topPos = document.getElementById('scrolldiv_theScroll').style.top.replace('px','');
        topPos = topPos/1 + scrollbuttonDirection;
        if(topPos<0){
            topPos=0;
            scrollMoveToActive=false;
        }
        if(topPos/1>visibleContentHeight-(scrollHandleHeight+4)/1){
            topPos = visibleContentHeight-(scrollHandleHeight+4);    
            scrollMoveToActive=false;
        }
        if(scrollbuttonDirection<0 && topPos<scrollMoveToYPosition-scrollHandleHeight/2)return;    
        if(scrollbuttonDirection>0 && topPos>scrollMoveToYPosition-scrollHandleHeight/2)return;            
        document.getElementById('scrolldiv_theScroll').style.top = topPos + 'px';
        document.getElementById('scrolldiv_content').style.top = 0 - Math.floor((contentHeight) * ((topPos)/(visibleContentHeight-scrollHandleHeight)))+'px'         
        setTimeout('scrolldiv_scrollMoveTo()',scrollTimer);        
    }
    
    function cancelEvent()
    {
        return false;            
    }

    function scrolldiv_scrollButton()
    {
        if(this.id=='scrolldiv_scrollDown')scrollbuttonDirection = scrollbuttonSpeed; else scrollbuttonDirection = scrollbuttonSpeed*-1;
        scrollbuttonActive=true;
        scrolldiv_scrollButtonScroll();
    }
    function scrolldiv_scrollButtonScroll()
    {
        if(!scrollbuttonActive)return;
        var topPos = document.getElementById('scrolldiv_theScroll').style.top.replace('px','');
        topPos = topPos/1 + scrollbuttonDirection;
        if(topPos<0){
            topPos=0;
            scrollbuttonActive=false;
        }
        if(topPos/1>visibleContentHeight-(scrollHandleHeight+4)/1){
            topPos = visibleContentHeight-(scrollHandleHeight+4);    
            scrollbuttonActive=false;
        }    
        document.getElementById('scrolldiv_theScroll').style.top = topPos + 'px';
        document.getElementById('scrolldiv_content').style.top = 0 - Math.floor((contentHeight) * ((topPos)/(visibleContentHeight-scrollHandleHeight)))+'px'             
        setTimeout('scrolldiv_scrollButtonScroll()',scrollTimer);
    }
    function scrolldiv_scrollButtonStop()
    {
        scrollbuttonActive = false;
    }
    
    
    function scrolldiv_initScroll()
    {
        visibleContentHeight = document.getElementById('scrolldiv_scrollbar').offsetHeight ;
        contentHeight = document.getElementById('scrolldiv_content').offsetHeight - visibleContentHeight;        
        scrollHandleObj = document.getElementById('scrolldiv_theScroll');
        scrollHandleHeight = scrollHandleObj.offsetHeight;
        scrollbarTop = document.getElementById('scrolldiv_scrollbar').offsetTop;        
        document.getElementById('scrolldiv_theScroll').onmousedown = scrollDiv_startScroll;
        document.body.onmousemove = scrollDiv_scroll;
        document.getElementById('scrolldiv_scrollbar').onselectstart = cancelEvent;
        document.getElementById('scrolldiv_theScroll').onmouseup = scrollDiv_stopScroll;
        if(document.all)document.body.onmouseup = scrollDiv_stopScroll; else document.documentElement.onmouseup = scrollDiv_stopScroll;
        document.getElementById('scrolldiv_scrollDown').onmousedown = scrolldiv_scrollButton;
        document.getElementById('scrolldiv_scrollUp').onmousedown = scrolldiv_scrollButton;
        document.getElementById('scrolldiv_scrollDown').onmouseup = scrolldiv_scrollButtonStop;
        document.getElementById('scrolldiv_scrollUp').onmouseup = scrolldiv_scrollButtonStop;
        document.getElementById('scrolldiv_scrollUp').onselectstart = cancelEvent;
        document.getElementById('scrolldiv_scrollDown').onselectstart = cancelEvent;
        document.getElementById('scrolldiv_scrollbar').onmousedown = scrolldiv_scrollMoveToInit;
    }
    /**//*
    Change from the default color
    */    
    function scrolldiv_setColor(rgbColor)
    {
        document.getElementById('scrolldiv_scrollbar').style.borderColor = rgbColor;
        document.getElementById('scrolldiv_theScroll').style.backgroundColor = rgbColor;
        document.getElementById('scrolldiv_scrollUp').style.borderColor = rgbColor;
        document.getElementById('scrolldiv_scrollDown').style.borderColor = rgbColor;
        document.getElementById('scrolldiv_scrollUp').style.color = rgbColor;
        document.getElementById('scrolldiv_scrollDown').style.color = rgbColor;
        document.getElementById('scrolldiv_parentContainer').style.borderColor = rgbColor;
    }
    /**//*
    Setting total width of scrolling div
    */
    function scrolldiv_setWidth(newWidth)
    {
        document.getElementById('dhtmlgoodies_scrolldiv').style.width = newWidth + 'px';
        document.getElementById('scrolldiv_parentContainer').style.width = newWidth-30 + 'px';        
    }
    
    /**//*
    Setting total height of scrolling div
    */
    function scrolldiv_setHeight(newHeight)
    {
        document.getElementById('dhtmlgoodies_scrolldiv').style.height = newHeight + 'px';
        document.getElementById('scrolldiv_parentContainer').style.height = newHeight + 'px';
        document.getElementById('scrolldiv_slider').style.height = newHeight + 'px';
        document.getElementById('scrolldiv_scrollbar').style.height = newHeight-40 + 'px';        
    }
    /**//*
    Setting new background color to the slider 
    */
    function setSliderBgColor(rgbColor)
    {
        document.getElementById('scrolldiv_scrollbar').style.backgroundColor = rgbColor;
        document.getElementById('scrolldiv_scrollUp').style.backgroundColor = rgbColor;
        document.getElementById('scrolldiv_scrollDown').style.backgroundColor = rgbColor;
    }
    /**//*
    Setting new content background color
    */
    function setContentBgColor(rgbColor)
    {
        document.getElementById('scrolldiv_parentContainer').style.backgroundColor = rgbColor;
    }
    
    /**//*
    Setting scroll button speed
    */
    function setScrollButtonSpeed(newScrollButtonSpeed)
    {
        scrollbuttonSpeed = newScrollButtonSpeed;
    }
    /**//*
    Setting interval of the scroll
    */
    function setScrollTimer(newInterval)
    {
        scrollTimer = newInterval;
    }
    
    </script>

<div id="dhtmlgoodies_scrolldiv">
    <div id="scrolldiv_parentContainer">
        <div id="scrolldiv_content">
        <!-- PUT YOUR HTML CONTENT IN HERE -->
        Scrolling content<br>Scrolling content<br>Scrolling content<br>Scrolling content<br>Scrolling content<br>Scrolling content<br>Scrolling content<br>Scrolling content<br>Scrolling content<br>Scrolling content<br>Scrolling content<br>Scrolling content<br>Scrolling content<br>Scrolling content<br>Scrolling content<br>
        <!-- END OF HTML CONTENT -->
        </div>
    </div>
    <div id="scrolldiv_slider">
        <div id="scrolldiv_scrollUp"><img src="images/arrow_up.gif"></div>
        <div id="scrolldiv_scrollbar">
            <div id="scrolldiv_theScroll"><span></span></div>
        </div>
        <div id="scrolldiv_scrollDown"><img src="images/arrow_down.gif"></div>
    </div>
</div>
<script type="text/javascript">
scrolldiv_setColor('#317082');    // Setting border color of the scrolling content
setSliderBgColor('#E2EBED');    // Setting color of the slider div
setContentBgColor('#FFFFFF');    // Setting color of the scrolling content
setScrollButtonSpeed(1);    // Setting speed of scrolling when someone clicks on the arrow or the slider
setScrollTimer(5);    // speed of 1 and timer of 5 is the same as speed of 2 and timer on 10 - what's the difference? 1 and 5 will make the scroll move a little smoother.
scrolldiv_setWidth(450);    // Setting total width of scrolling div
scrolldiv_setHeight(400);    // Setting total height of scrolling div
scrolldiv_initScroll();    // Initialize javascript functions
</script>