Salve amici, utilizzo questo script per creare uno scroller orizzontale:
var speed=50 // speed of scroller
var step=5 // smoothness of movement
var top="#top" // name of anchor used as page top when clicking start / stop / show
var Start= "Start" // Text for start link
var Stop = "Stop" // Text for stop link
var Show = "Show" // Text for show link
var x, scroll, divW, sText=""
function onclickIE(idAttr,handler,call){
if ((document.all)&&(document.getElementById)){idAttr[handler]=new Function(call)}
}
function addLink(id,call,txt){
var e=document.createElement('A')
e.setAttribute('href',top)
e.setAttribute('onclick',call)
var linktext=document.createTextNode(txt)
e.appendChild(linktext)
document.getElementById(id).appendChild(e)
}
function addControls(){
addLink('controls','clickAction(0)',Stop)
onclickIE(document.getElementById('controls').chil dNodes[0],"onclick",'clickAction(0)')
document.getElementById('controls').appendChild(do cument.createTextNode(' | '))
addLink('controls','clickAction(2)',Show)
onclickIE(document.getElementById('controls').chil dNodes[2],"onclick",'clickAction(2)')
}
function stopScroller(){clearTimeout(scroll)}
function setAction(node,callvalue,txt){
var c=document.getElementById('controls')
c.childNodes[node].setAttribute('onclick','clickAction('+callvalue+' )')
onclickIE(document.getElementById('controls').chil dNodes[node],"onclick",'clickAction('+callvalue+')')
c.childNodes[node].firstChild.nodeValue=txt
}
function clickAction(no){
switch(no) {
case 0:
stopScroller()
setAction(0,1,Start)
setAction(2,2,Show)
break
case 1:
startScroller()
setAction(0,0,Stop)
setAction(2,2,Show)
break
case 2:
stopScroller()
setAction(0,1,Start)
setAction(2,3,Start)
x=0
document.getElementById('tag').style.whiteSpace='n ormal'
document.getElementById('tag').style.left='0px'
break
case 3:
startScroller()
setAction(0,0,Stop)
setAction(2,2,Show)
x=divW
document.getElementById('tag').style.left=x+'px'
}
}
function startScroller(){
document.getElementById('tag').style.whiteSpace='n owrap'
var p=document.createElement('P')
p.id='testP'
p.style.fontSize='25%' //fix for mozilla. multiply by 4 before using
x-=step
if (document.getElementById('tag').className) p.className=document.getElementById('tag').classNa me
p.appendChild(document.createTextNode(sText))
document.body.appendChild(p)
pw=p.offsetWidth
document.body.removeChild(p)
if (x<(pw*4)*-1){x=divW}
document.getElementById('tag').style.left=x+'px'
scroll=setTimeout('startScroller()',speed)
}
function initScroller(){
if (document.getElementById && document.createElement && document.body.appendChild) {
addControls()
document.getElementById('controls').style.display= 'block'
divW=document.getElementById('scroller').offsetWid th
x=divW
document.getElementById('tag').style.position='rel ative'
document.getElementById('tag').style.left=divW+'px '
var ss=document.getElementById('tag').childNodes
for (i=0;i<ss.length;i++) {sText+=ss[i].nodeValue+" "}
scroll=setTimeout('startScroller()',speed)
}
}
function addLoadEvent(func) {
if (!document.getElementById | !document.getElementsByTagName) return
var oldonload = window.onload
if (typeof window.onload != 'function') {
window.onload = func;
} else {
window.onload = function() {
oldonload()
func()
}
}
}
addLoadEvent(initScroller)
Il problema è che con questo script il testo non si ripete ciclicamente, ma solo quando tutto il testo e scomparso alla sx.... io invece vorrei una cosa ciclica! Cosa devo cambiare?
