function onPictureRolloverNextOver() {}
function onPictureRolloverNextOut() {}
function onPictureRolloverPreviousOver() {}
function onPictureRolloverPreviousOut() {}

graphic1PictureRolloverNext = new Image()
graphic1PictureRolloverNext.src = './images/next_30.gif';
graphic2PictureRolloverNext = new Image()
graphic2PictureRolloverNext.src = './images/next_over.gif';


graphic1PictureRolloverPrevious = new Image()
graphic1PictureRolloverPrevious.src = './images/previous_30.gif';
graphic2PictureRolloverPrevious = new Image()
graphic2PictureRolloverPrevious.src = './images/previous_over.gif';


function onPictureRolloverNextOver() {
window.PictureRolloverNext.src=graphic2PictureRolloverNext.src;
}
function onPictureRolloverNextOut() {
window.PictureRolloverNext.src=graphic1PictureRolloverNext.src;
}
function onPictureRolloverPreviousOver() {
window.PictureRolloverPrevious.src=graphic2PictureRolloverPrevious.src;
}
function onPictureRolloverPreviousOut() {
window.PictureRolloverPrevious.src=graphic1PictureRolloverPrevious.src;
}