function a(a) {return document.getElementById(a);}

function showUMenu(id) {
    a('VideoPlayback').style.visibility='hidden';
    a(id).style.display='block';
}
function hideUMenu(id) {
    a('VideoPlayback').style.visibility='visible';
    a(id).style.display='none';
}

function showHoverMenu(id, color) {    
	if (color == 'red') {        
		a(id).style.backgroundImage='url(static/images/back_hover_menu.gif)';
  } else if (color == 'blue') {        
		a(id).style.backgroundImage='url(static/images/blue/back_hover_menu.gif)';
  }

    a(id).style.backgroundPosition='bottom';
    a(id).style.backgroundRepeat='repeat-x';
}
function hideHoverMenu(id) {
    a(id).style.backgroundImage='none';
}