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];
  }
}

image = new initArray(
"assets/images/homepage/mainImage1.jpg",
"assets/images/homepage/mainImage2.jpg",
"assets/images/homepage/mainImage3.jpg",
"assets/images/homepage/mainImage4.jpg"

);

text = new initArray(
"Image of a buidling",
"Image of a buidling",
"Image of a buidling",
"Image of a buidling"
);

var currentdate = new Date();
var core = currentdate.getSeconds() % image.length; var ranimage = image[core]; var rantext  = text[core];
document.write('<img src=\"'+ranimage+'\" border="0" alt=\"'+rantext+'\" />');
//-->