Random Banner Link mit timer

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+ '\"><img src=\"'+ranimage+'\" border="0" alt=\"'+rantext+'\">....</a>');