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Thread: IFRAME scroller

  1. #1
    Join Date
    Jan 2007
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    Default IFRAME scroller

    1) Script Title: IFRAME scroller

    2) Script URL (on DD): http://www.dynamicdrive.com/dynamici...e-scroller.htm

    3) Website: http://www.callus.cc/v2

    4) Describe problem: It works perfectly in Firefox but not IE. It shows up my content, but does not scroll. I do receive an error in IE in the bottom left hand corner where it says "Done". The error is as follows;

    Error: 'dataobj.style' is null or not an object

    I have a good idea that the problem lies in the java script in my linked file. Here's the source code;

    PHP Code:
    <?php

    function gigs()
    {
        include_once(
    "mysql.php");
        include_once(
    "bbcode.php");
        
    $db2 = new db;
        
    $db2->connect();
        
        
    $sql "SELECT * FROM mygigs_gigs WHERE Active='1' ORDER BY Post_Date ASC";
        
    $return $db2->query($sql);
        
        while ( 
    $row mysql_fetch_array($return) )
    {
    ?>

    <style type="text/css">
    <!--
    body,td,th {
        color: #FFFFFF;
        font-size: 11px;
    }
    body {
        background-color: #0B0B0B;
        margin-left: 5px;
    }
    .style1 {font-size: 11px}
    .style2 {
        font-family: Verdana, Arial, Helvetica, sans-serif;
        font-size: 14px;
        font-weight: bold;
        color: #990000;
    }
    .style3 {
        font-family: Verdana, Arial, Helvetica, sans-serif;
        font-size: 11px;
        font-weight: normal;
        color: #FFFFFF;
    }
    -->
    </style>
        
        <div id="datacontainer" style="position:absolute" onMouseover="scrollspeed=0" onMouseout="scrollspeed=cache">
          <table width="100%" border="0" cellpadding="0" cellspacing="0">
            <tr>
              <td height="5" colspan="2"></td>
            </tr>
            <tr>
              <td>&nbsp;</td>
              <td width="816" valign="bottom"><span class="style2"><strong><?php echo @stripslashes($row[gigs_Title]); ?></strong></span></td>
            </tr>
            <tr>
              <td>&nbsp;</td>
              <td class="style3"><?php 
        $Text 
    =  @stripslashes($row[gigs_Body]); 
        
    $mytext BBcode($Text);
        echo 
    $mytext;
        
    ?></td>
            </tr>
            <tr>
              <td>&nbsp;</td>
              <td></td>
            </tr>
          </table>
    <?php }
        
    // end of function gigs
    ?>
    </div>
        
    <script type="text/javascript">

    /***********************************************
    * IFRAME Scroller script-  Dynamic Drive DHTML code library (www.dynamicdrive.com)
    * This notice MUST stay intact for legal use
    * Visit Dynamic Drive at http://www.dynamicdrive.com/ for full source code
    ***********************************************/

    //Specify speed of scroll. Larger=faster (ie: 5)
    var scrollspeed=cache=1

    //Specify intial delay before scroller starts scrolling (in miliseconds):
    var initialdelay=5000

    function initializeScroller(){
    dataobj=document.all? document.all.datacontainer : document.getElementById("datacontainer")
    dataobj.style.top="5px"
    setTimeout("getdataheight()", initialdelay)
    }

    function getdataheight(){
    thelength=dataobj.offsetHeight
    if (thelength==0)
    setTimeout("getdataheight()",10)
    else
    scrollDiv()
    }

    function scrollDiv(){
    dataobj.style.top=parseInt(dataobj.style.top)-scrollspeed+"px"
    if (parseInt(dataobj.style.top)<thelength*(-1))
    dataobj.style.top="70px"
    setTimeout("scrollDiv()",100)
    }

    if (window.addEventListener)
    window.addEventListener("load", initializeScroller, false)
    else if (window.attachEvent)
    window.attachEvent("onload", initializeScroller)
    else
    window.onload=initializeScroller
    </script>

  2. #2
    Join Date
    Aug 2004
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    Default

    There is a lot of invalid tags in your external html page. For example, the tag:

    Code:
    <div id="datacontainer" style="position:absolute" onMouseover="scrollspeed=0" onMouseout="scrollspeed=cache">
    is repeated twice. That, plus a slew of unclosed and invalid tag containerships. Try reverting back to the original external.htm page, then gradually change it to your own, making sure each step of the way the HTML is valid.

  3. #3
    Join Date
    Jan 2007
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    Default

    Thankyou, I did what you suggested and I got the same result. I have been playing around with the code and have found that if I remove the database connection code from the start, I do get errors because its looking for the code, but the scroll works in IE and Firefox.

    This code is as follows;
    PHP Code:
    <?php

    function gigs()
    {
        include_once(
    "mysql.php");
        include_once(
    "bbcode.php");
        
    $db2 = new db;
        
    $db2->connect();
        
        
    $sql "SELECT * FROM mygigs_gigs WHERE Active='1' ORDER BY Post_Date ASC";
        
    $return $db2->query($sql);
        
        while ( 
    $row mysql_fetch_array($return) )
    {
    ?>
    I do need this code for my dynamic content to work, so it receives data from my mysql database. But the scroll will not work in IE with this code.

    Any advice?

  4. #4
    Join Date
    Jan 2007
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    Default

    Just thought Id bump this to see if anyone has a solution to the obtrusive code.

    Thanks

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