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[JS] Nice marquee/ticker-tape code

Discussion in 'HTML, Graphics & Programming' started by Augmented, 23 May 2006.

  1. Augmented

    Soldato

    Joined: 18 Oct 2002

    Posts: 5,464

    Location: London Town

    I'm after a scrolling ticker-tape implementation in javascript, and due to time I just need to drop one straight in. Anyone know of a clean, unobtrusive cross-browser version of the dreaded <marquee>?
    Only specific requirement is that the content of the scrolling text be relatively simple to edit.

    Thanks :).
     
  2. iCraig

    PermaBanned

    Joined: 21 Apr 2004

    Posts: 13,314

    Location: Wolverhampton

    Code:
    <script language="JavaScript1.2">
    
    //Specify the marquee's width (in pixels)
    var marqueewidth="300px"
    //Specify the marquee's height
    var marqueeheight="25px"
    //Specify the marquee's marquee speed (larger is faster 1-10)
    var marqueespeed=2
    //configure background color:
    var marqueebgcolor="#DEFDD9"
    //Pause marquee onMousever (0=no. 1=yes)?
    var pauseit=1
    
    
    var marqueecontent='<nobr><font face="Arial">Thank you for visiting <a href="http://www.dynamicdrive.com">Dynamic Drive.</a> If you find this script useful, please consider linking to us by <a href="../link.htm">click here.</a> Enjoy your stay!</font></nobr>'
    
    marqueespeed=(document.all)? marqueespeed : Math.max(1, marqueespeed-1) //slow speed down by 1 for NS
    var copyspeed=marqueespeed
    var pausespeed=(pauseit==0)? copyspeed: 0
    var iedom=document.all||document.getElementById
    if (iedom)
    document.write('<span id="temp" style="visibility:hidden;position:absolute;top:-100px;left:-9000px">'+marqueecontent+'</span>')
    var actualwidth=''
    var cross_marquee, ns_marquee
    
    function populate(){
    if (iedom){
    cross_marquee=document.getElementById? document.getElementById("iemarquee") : document.all.iemarquee
    cross_marquee.style.left=parseInt(marqueewidth)+8+"px"
    cross_marquee.innerHTML=marqueecontent
    actualwidth=document.all? temp.offsetWidth : document.getElementById("temp").offsetWidth
    }
    else if (document.layers){
    ns_marquee=document.ns_marquee.document.ns_marquee2
    ns_marquee.left=parseInt(marqueewidth)+8
    ns_marquee.document.write(marqueecontent)
    ns_marquee.document.close()
    actualwidth=ns_marquee.document.width
    }
    lefttime=setInterval("scrollmarquee()",20)
    }
    window.onload=populate
    
    function scrollmarquee(){
    if (iedom){
    if (parseInt(cross_marquee.style.left)>(actualwidth*(-1)+8))
    cross_marquee.style.left=parseInt(cross_marquee.style.left)-copyspeed+"px"
    else
    cross_marquee.style.left=parseInt(marqueewidth)+8+"px"
    
    }
    else if (document.layers){
    if (ns_marquee.left>(actualwidth*(-1)+8))
    ns_marquee.left-=copyspeed
    else
    ns_marquee.left=parseInt(marqueewidth)+8
    }
    }
    
    if (iedom||document.layers){
    with (document){
    document.write('<table border="0" cellspacing="0" cellpadding="0"><td>')
    if (iedom){
    write('<div style="position:relative;width:'+marqueewidth+';height:'+marqueeheight+';overflow:hidden">')
    write('<div style="position:absolute;width:'+marqueewidth+';height:'+marqueeheight+';background-color:'+marqueebgcolor+'" onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed">')
    write('<div id="iemarquee" style="position:absolute;left:0px;top:0px"></div>')
    write('</div></div>')
    }
    else if (document.layers){
    write('<ilayer width='+marqueewidth+' height='+marqueeheight+' name="ns_marquee" bgColor='+marqueebgcolor+'>')
    write('<layer name="ns_marquee2" left=0 top=0 onMouseover="copyspeed=pausespeed" onMouseout="copyspeed=marqueespeed"></layer>')
    write('</ilayer>')
    }
    document.write('</td></table>')
    }
    }
    </script>
    
     
  3. Augmented

    Soldato

    Joined: 18 Oct 2002

    Posts: 5,464

    Location: London Town

    Thanks, though that's actually the one I've already got the code from (porting over from an old site) :). Does the job fine, but was looking for something not relying so much on document.write. Might just stick with it and look into tidying it up at a later date if time permits.
     
  4. iCraig

    PermaBanned

    Joined: 21 Apr 2004

    Posts: 13,314

    Location: Wolverhampton

    Ungrateful sod!!1 :mad:


    Hehe.. ;) it is a bulky one, but it's the cleanest I've found so far that doesn't have that horrible stutter.