function menu_on(obj) {obj.style.color='#ced9f9';}
function menu_out(obj) {obj.style.color='white';}
function tab_on(obj) {document.getElementById(obj).className='MenuTabHover';}
function tab_out(obj) {document.getElementById(obj).className='MenuTabLink';}
function HideModalPopup() {$find("ModalBehaviour").hide();}