[js] scroller validi xhtml

[ateicos]

ho preso da http://www.dynamicdrive.com/dynamicindex2/crosstick.htm questo js che mostra le news con uno scroller verticale.

e dato che non era corretto secondo il validator del w3c (validator.w3.org), l'ho riadattato

ora funge che è un piacere

sto cercandone adesso uno orizzontale, nel mentre vi posto il codice di questo qua, basta inserirlo nel body del corpo.

<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 (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit Dynamic Drive at http://www.dynamicdrive.com/ 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]=" click 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>
	<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>
</div>

<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>

[ateicos]

da qui
http://www.dynamicdrive.com/dynamicindex2/cmarquee.htm
ho preso un altro js perfetto per sostituire il <marquee> non supportato dall'xhtml.

vi posto il codice

<div style=" margin: auto auto; width: 620px; background-color:#FF9900; text-align:center; " >


<script type="text/javascript" >
<!--
/*
Cross browser Marquee script- © Dynamic Drive (www.dynamicdrive.com)
For full source code, 100's more DHTML scripts, and Terms Of Use, visit http://www.dynamicdrive.com
Credit MUST stay intact
*/

//Specify the marquee's width (in pixels)
var marqueewidth="620px"
//Specify the marquee's height
var marqueeheight="16px"
//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

//Specify the marquee's content (don't delete <nobr> tag)
//Keep all content on ONE line, and backslash any single quotations (ie: that's great):

var marqueecontent='<nobr>Thank you for visiting Dynamic Drive. If you find this script useful, please consider linking to us by click here. Enjoy your stay!</nobr>'


////NO NEED TO EDIT BELOW THIS LINE////////////
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>


</div>