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];
}
}

url = new initArray(
"http://www.bmb.psu.edu/",
"http://www.bmb.psu.edu/",
"http://www.bmb.psu.edu/",
"http://www.bmb.psu.edu/",
"http://www.bmb.psu.edu/",
"http://www.bmb.psu.edu/",
"http://www.bmb.psu.edu/",
"http://www.bmb.psu.edu/"
);

image = new initArray(
"img/hand-testtubes.jpg",
"img/handsinhood.jpg",
"img/gel.jpg",
"img/smilingwithpipetteman.jpg",
"img/microscope.jpg",
"img/testtube.jpg",
"img/pipetteman.jpg",
"img/liquidnitrogen.jpg"
);

text = new initArray(
"images of Penn State BMB",
"images of Penn State BMB",
"images of Penn State BMB",
"images of Penn State BMB",
"images of Penn State BMB",
"images of Penn State BMB",
"images of Penn State BMB",
"images of Penn State BMB"
);

var currentdate = new Date();
var core = currentdate.getSeconds() % image.length;
var ranlink = url[core];
var ranimage = image[core];
var rantext = text[core];

document.write('<a href=\"' +ranlink+ '\"><img src=\"'+ranimage+'\" border=\"0\" alt=\"'+rantext+'\" class=\"rightimage\" /></a>');