How can I scroll a div field using javascript?

Hello experts, I have a web page with a large amount of information in a div field.  This page will be displayed on a small touch screen hand held and the default scroll buttons that come when you assign the property of overflow to a div tag are too small.  I am trying to use two buttons one to scroll up and the other to scroll down.  I have only been successful in scrolling to the top, I thought by substracting or adding to the scroll height would allow me to scroll using buttons.  Any ideas?


I know this still needs work, i will need to keep track of the current position.
function scroll_up()
{
  var div = document.getElementById('div-fork');
  h = div.scrollHeight;
  div.scrollTop = h-10;
}

function scroll_down()
{
  var div = document.getElementById('div-fork');
  h = div.scrollHeight;
  div.scrollTop = h+10;
}

<a onclick ="scroll_up();"><IMG alt="" src="images\arrowup.gif"></a><BR>
                                                      <BR>&nbsp;
                                                      <a onclick="scroll_down();"><IMG alt="" src="images\arrowdown.gif"></a></td>
                                    
tentavariousAsked:
Who is Participating?
 
scrathcyboyConnect With a Mentor Commented:
http://germ.wordpress.com/2006/04/10/scroll-div-contents-with-javascript/
ub2.underblob.com/research/js/scroll_btn.php
orums.digitalpoint.com/showthread.php?t=945898
codingforums.com/archive/index.php?t-93997.html

Those should all help, but remember, small displays are a challenge any way you do it.
0
 
silemoneCommented:
use css   overflow:auto;
0
 
silemoneCommented:
or place anchors in page where when you click the button, it takes you to page anchor
0
 
tentavariousAuthor Commented:
I explained that overlow gives you a default scroll bar that is too small, this web page will be running on a touch screen and they want buttons to be able to scroll up or down through the list within the div tags.  Anchors will not work either.
0
 
tentavariousAuthor Commented:
What I want to happens is just like pressing the up and down arrow keys.  If I click on the div and press the down key it scrolls just like what I need.  Instead of actually pressing the arrow key I need a button on the form to do the same thing.  If I could send the the arrow key press to IE via javascript that would be perfect.
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.