function getSiteHeaderImage() {
var mtImages = new Array();
var mtAltTag = new Array();

mtImages[0] = "/celtics/media/header2010-paulpierce300100.jpg";
mtImages[1] = "/celtics/media/header2010-kevingarnett300100.jpg";
mtImages[2] = "/celtics/media/header2010-rayallen300100.jpg";

mtAltTag[0] = "Paul Pierce";
mtAltTag[1] = "Kevin Garnett";
mtAltTag[2] = "Ray Allen";

var randValue = Math.floor(Math.random() * mtImages.length);
document.write('<img src="' + mtImages[randValue]+ '" width="300" height="100" alt="' + mtAltTag[randValue]+ '" class="header_image" />');
}