function addBookmark(siteAddress,siteName)	{
	if(window.sidebar) {
		window.sidebar.addPanel(siteName, siteAddress,"");
	}	else if(document.all)	{
			window.external.AddFavorite(siteAddress,siteName);
	}	else if(window.opera && window.print)	{
			return true;
	}
	return true;
}
	
function setMainPic($num) {
	document.getElementById('mainPic').src = 'instruments/images/' + $num + '.jpg';
}