function on_map(image) {
    document[image].src="../pics/contact_alan_map_mouse.gif";
    }   
function off_map(image) {
    document[image].src="../pics/contact_alan_map.gif";
    }
function on_feedback(image) {
    document[image].src="../pics/contact_alan_feedback_mouse.gif";
    }   
function off_feedback(image) {
    document[image].src="../pics/contact_alan_feedback.gif";
    }
function on_apply(image) {
    document[image].src="../pics/contact_alan_apply_mouse.gif";
    }   
function off_apply(image) {
    document[image].src="../pics/contact_alan_apply.gif";
    }
function on_subscribe(image) {
    document[image].src="../pics/contact_alan_subscribe_mouse.gif";
    }   
function off_subscribe(image) {
    document[image].src="../pics/contact_alan_subscribe.gif";
    }