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/* Bannerwerber
* (c) 2002 Ulrich Kritzner
* Die Verwendung dieses Scripts in kommerziellen Seiten ist kostenpflichtig
*/
/* Warnung:
* Nicht alle Browser unterstuetzen die gleichzeitige Ausfuehrung mehrerer Timeouts.
* Daher muss beim gleichzeitigen Einsatz mehrerer Banner
* oder der Kombination mit anderen Droeppez-Animationen
* die Datei "timer.js" im HTML-Dokument geladen werden.
*
* Erklaerung der "unverstaendlichen" Quelltextabschnitte:
* wird "timer.js" _nicht_ eingebunden (if (!(this.usetimer))),
* kuemmert sich Banner selbst um seine timeouts,
* wird "timer.js" eingebunden (if (this.usetimer)),
* laesst Banner seine timeouts vom timer managen
* Die Funktionen des timers sind in der extra Datei "timer.js" definiert!
*/
function B_AddEntry(imgsrc,elapse,linkURL,useOpen)
{
var entry=new Object();
entry.image=new Image();
entry.image.src=imgsrc;
entry.elapse=elapse;
if (entry.elapse<20)
entry.elapse=20;
if (entry.elapse<this.minelapse)
this.minelapse=entry.elapse;
entry.linkURL=linkURL;
entry.useOpen=useOpen;
this.entries[this.entries.length]=entry;
}
function B_TimerFunc()
{
this.cur=this.cur%this.entries.length;
this.curentry=this.entries[this.cur];
this.cur++;
document.images[this.imgnum].src=this.curentry.image.src;
if (this.usetimer)
/* wenn timer.js geladen ist: */
{
this.timestep=Math.round(this.curentry.elapse/u_timer_elapse);
if (this.timestep<1)
this.timestep=1;
}
else
/* wenn timer.js _nicht_ geladen ist: */
this.timeout=window.setTimeout(this.name+".TimerFunc()",this.curentry.elapse);
}
function B_Run()
{
if (this.usetimer)
/* wenn timer.js geladen ist: */
{
this.timestep=1;
if (u_timer_elapse>0)
u_timer_continue();
}
else
/* wenn timer.js _nicht_ geladen ist: */
{
if (this.timeout!=0)
window.clearTimeout(this.timeout);
this.timeout=0;
this.TimerFunc();
}
}
function B_FollowLink()
{
var linkURL=this.curentry.linkURL;
if ((typeof(linkURL)=="string")&&(linkURL!="")&&(linkURL!="none"))
{
if (this.curentry.useOpen)
window.open(linkURL,"_blank");
else
top.location.href=linkURL;
}
}
function Banner(name,imgnum)
{
this.name=name;
this.imgnum=imgnum;
this.cur=0;
this.minelapse=1000;
this.entries=new Array();
this.curentry=0;
this.AddEntry=B_AddEntry;
this.TimerFunc=B_TimerFunc;
this.Run=B_Run;
this.FollowLink=B_FollowLink;
if (typeof(u_timer_add_object)=="function")
/* wenn timer.js geladen ist: */
{
this.usetimer=1;
this.timestep=0;
this.timeval=0;
u_timer_add_object(this);
}
else
/* wenn timer.js _nicht_ geladen ist: */
{
this.usetimer=0;
this.timeout=0;
}
}



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<script language="Javascript">
<!--
// original content taken from Nic's JavaScript Page with permission
// lack of these three lines will result in copyright infringment
// made by: Nic's JavaScript Page - http://www.javascript-page.com
var currentdate = 0;
var core = 0;
function initArray() {
this.length = initArray.arguments.length;
for (var i = 0; i < this.length; i++) {
this[i] = initArray.arguments[i];
}
}
link = new initArray(
"http://3bgraphics.hypermart.net/",
"http://html.digitalsea.net/",
"http://www.javascript-page.com/"
);
image = new initArray(
"http://3bgraphics.hypermart.net/link/3bgraphics.gif",
"http://html.digitalsea.net/htmlnow.gif",
"http://www.geocities.com/~jsmaster/jsnow.gif"
);
text = new initArray(
"3B Graphics",
"Learn HTML in 7 Easy Steps",
"Nic's JavaScript Page"
);
var currentdate = new Date();
var core = currentdate.getSeconds() % image.length;
var ranlink = link[core];
var ranimage = image[core];
var rantext = text[core];
document.write('<a href=\"' +ranlink+ '\" target=\"_blank\"><img src=\"'+ranimage+'\" border="0" alt=\"'+rantext+'\"></a>');
//-->
</SCRIPT>

http://www.htmlbasix.com/banner.shtml
http://www.js-examples.com/search/?op=2&q=8
http://www.devscripts.com/index.php