'hideButtons' function can be call by view hides the nodes. So we have to check if the button is drawn (i.e. sector is defined) first before hiding it.
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
margin: 0;
padding: 0;
border: 0;
font-size: 100%;
font: inherit;
vertical-align: baseline;
}
img a {
border: none;
}
body {
background-color: #F7F6F6;
color: #003050;
}
body, p, h1, h2, h3 {
font-family: 'Open Sans', Helvetica, Arial, sans-serif;
}
h1 {
margin: 5px 0; text-align: center; font-size: 24px;
}
ul.pageindex {
font-size: 20px; padding-left: 25px; list-style: disc;
}
h2 {
font-size: 20px; margin: 5px 0;
}
#LdtPlayer {
float: left;
margin: 10px;
}
#AnnotationsListContainer {
float: left;
width: 400px;
margin: 10px 0;
}