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  1. #1
    SitePoint Enthusiast
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    Unhappy Vertical scroller won't work!

    Hi all folks,
    i am using a js for having a vertical scroll effect for my news!
    I founded the js here http://www.dynamicdrive.com/dynamicindex2/crosstick.htm
    This piece of code was modified in order to have no problems when validating by w3c validator.
    And this is :
    HTML Code:
    <div style=" margin: auto auto; width: 620px; background-color:#FF9900; text-align:center; " >
    
    <script type="text/javascript" >
    / ****************************************
    *******
    * Pausing updown message scroller-  Dynamic Drive DHTML code library ([url]www.dynamicdrive.com[/url])
    * This notice MUST stay intact for legal use
    * Visit Dynamic Drive at [url]http://www.dynamicdrive.com/[/url] for full source code
     ****************************************
    *******/
    
    // configure the below five variables to change the style of the scroller
    var scrollerdelay='3000'; //delay between msg scrolls. 3000=3 seconds.
    var scrollerwidth='150px';
    var scrollerheight='16px';
    var scrollerbgcolor='lightyellow';
    // set below to '' if you don't wish to use a background image
    var scrollerbackground='scrollerback.gif';
    
    // configure the below variable to change the contents of the scroller
    var messages=new Array();
    messages[0]=" <a href='mailto:ateicos@ateicos.com' title=' click ' >click</a> Click here to go back to Dynamicdrive.com frontpage ";
    messages[1]=" Visit JavaScriptKit for award winning JavaScript tutorials ";
    messages[2]=" Get help on scripting and web development. Visit CodingForums.com! ";
    messages[3]=" Looking for Free Java applets? Visit Freewarejava.com! ";
    messages[4]=" If you find this script useful, please click here to link back to Dynamic Drive! ";
    
    ///////Do not edit pass this line///////////////////////
    
    var ie=document.all
    var dom=document.getElementById
    
    if (messages.length>2)
    i=2
    else
    i=0
    
    function move1(whichlayer){
    tlayer=eval(whichlayer)
    if (tlayer.top>0 && tlayer.top<=5){
    tlayer.top=0
    setTimeout("move1(tlayer)",scrollerdelay)
    setTimeout("move2(document.getElementById('scroller').document.second)",scrollerdelay)
    return
    }
    if (tlayer.top>=tlayer.document.height*-1){
    tlayer.top-=5
    setTimeout("move1(tlayer)",50)
    }
    else{
    tlayer.top=parseInt(scrollerheight)
    tlayer.document.write(messages[i])
    tlayer.document.close()
    if (i==messages.length-1)
    i=0
    else
    i++
    }
    }
    
    function move2(whichlayer){
    tlayer2=eval(whichlayer)
    if (tlayer2.top>0 && tlayer2.top<=5){
    tlayer2.top=0
    setTimeout("move2(tlayer2)",scrollerdelay)
    setTimeout("move1(document.getElementById('scroller').document.first)",scrollerdelay)
    return
    }
    if (tlayer2.top>=tlayer2.document.height*-1){
    tlayer2.top-=5
    setTimeout("move2(tlayer2)",50)
    }
    else{
    tlayer2.top=parseInt(scrollerheight)
    tlayer2.document.write(messages[i])
    tlayer2.document.close()
    if (i==messages.length-1)
    i=0
    else
    i++
    }
    }
    
    function move3(whichdiv){
    tdiv=eval(whichdiv)
    if (parseInt(tdiv.style.top)>0 && parseInt(tdiv.style.top)<=5){
    tdiv.style.top=0+"px"
    setTimeout("move3(tdiv)",scrollerdelay)
    setTimeout("move4(second2_obj)",scrollerdelay)
    return
    }
    if (parseInt(tdiv.style.top)>=tdiv.offsetHeight*-1){
    tdiv.style.top=parseInt(tdiv.style.top)-5+"px"
    setTimeout("move3(tdiv)",50)
    }
    else{
    tdiv.style.top=parseInt(scrollerheight)
    tdiv.innerHTML=messages[i]
    if (i==messages.length-1)
    i=0
    else
    i++
    }
    }
    
    function move4(whichdiv){
    tdiv2=eval(whichdiv)
    if (parseInt(tdiv2.style.top)>0 && parseInt(tdiv2.style.top)<=5){
    tdiv2.style.top=0+"px"
    setTimeout("move4(tdiv2)",scrollerdelay)
    setTimeout("move3(first2_obj)",scrollerdelay)
    return
    }
    if (parseInt(tdiv2.style.top)>=tdiv2.offsetHeight*-1){
    tdiv2.style.top=parseInt(tdiv2.style.top)-5+"px"
    setTimeout("move4(second2_obj)",50)
    }
    else{
    tdiv2.style.top=parseInt(scrollerheight)
    tdiv2.innerHTML=messages[i]
    if (i==messages.length-1)
    i=0
    else
    i++
    }
    }
    
    function startscroll(){
    if (ie||dom){
    first2_obj=ie? first2 : document.getElementById("first2")
    second2_obj=ie? second2 : document.getElementById("second2")
    move3(first2_obj)
    second2_obj.style.top=scrollerheight
    second2_obj.style.visibility='visible'
    }
    else if (document.layers){
    document.getElementById('scroller').visibility='show'
    move1(document.getElementById('scroller').document.first)
    document.getElementById('scroller').document.second.top=parseInt(scrollerheight)+5
    document.getElementById('scroller').document.second.visibility='show'
    }
    }
    
    window.onload=startscroll
    </script>
    
    
    <div id="scroller" style=" width:620px; margin: auto auto; visibility:hidden; " >
    	<div id="first" style=" left:0; top:1px; width:620px; " >
    	<script type="text/javascript" >
    		if (document.layers) {
    			document.write(messages[0]);
    		}
    	</script>
    	</div><!-- first //-->
    	<div id="second" style=" left:0; top:0; width:620px; margin: auto auto; visibility:hidden; " >
    	<script type="text/javascript" >
    		if (document.layers) {
    			document.write(messages[dyndetermine=(messages.length==1)? 0 : 1]);
    		}
    	</script>
    	</div><!-- second //-->
    </div><!-- scroller //-->
    
    <script type="text/javascript" >
    	if (ie||dom){
    		document.writeln('<div id="scroller2" style=" position:relative; width:620px; height:16px; overflow:hidden; ">')
    			document.writeln('<div style="position:absolute; width:620px; height:16px; clip:rect(0 620px 16px 0); left:0px; top:0px">')
    				document.writeln('<div id="first2" style="position:absolute; width:620px; left:0px; top:1px; ">')
    					document.write(messages[0])
    				document.writeln('</div>')
    				document.writeln('<div id="second2" style="position:absolute; width:620px; left:0px; top:0px; visibility:hidden">')
    					document.write(messages[dyndetermine=(messages.length==1)? 0 : 1])
    				document.writeln('</div>')
    			document.writeln('</div>')
    		document.writeln('</div>')
    	}
    </script>
    
    
    </div>
    The problem is that this code show me a white page!
    What is the problem!??!
    thank you in advice for any suggests,help...
    cheers

  2. #2
    SitePoint Zealot Valera Selev's Avatar
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    Quote Originally Posted by k4is3r
    What is the problem!??!
    thank you in advice for any suggests,help...
    cheers
    Just kill this stuff:

    Code:
    / ****************************************
    *******
    * Pausing updown message scroller-  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
     ****************************************
    *******/
    The problem is in wrong javascript commenting.

  3. #3
    SitePoint Enthusiast
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    thank you a lot!


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