/*

nmt.bar-graph.js generates the following DOM element structure:


	.bar-graph

		.bg-title			(only gets added if no external titleHolder element specified in init() call)

		.bg-bar-holder
			.bg-bar			(varying border-bottom-width determines height of each bar)
			.bg-bar
			.bg-bar
			...etc

		.bg-y-axis-max		'123'	(highest value of graph)
		.bg-y-axis-min		'0'

		.bg-x-marker		'2005'	
		.bg-x-marker		'2006'
		.bg-x-marker		'2007'
		...etc

		.bg-prev			'←'
			span			'OUDER'
		.bg-next			'→'
			span			'NIEUWER'

*/


.bar-graph {
   color: #333;
   text-transform: uppercase;
   font-family: Arial, sans-serif;
   font-size: 10px;
   width: 448px;
   height: 100px;
   position: relative; }

.bg-title {
	font-weight: bold;
	position: absolute;
	top: 0px;
	left: 0px; }

.bg-bar-holder {
	/*border-top: 1px solid orange;*/
	position: absolute;
	top: -10px;
	left: 0;
	overflow: hidden;
	width: 100%;
	height: 41px;
	padding-top: 30px;
	cursor: pointer; }

.bg-bar {
	position: absolute;
	width: 4px;
	height: 0;
	bottom: 0;
	/*border-top: 30px solid transparent;*/
	border-top: 80px solid transparent;
	border-bottom: 1px solid #666; }

.bg-bar:after {
	/* this 1px-wide pseudo-element prevents cursor flickering while hovering between bars */
	position: absolute;
	width: 1px;
	height: 80px;
	background-color: transparent;
	left: -1px;
	top: -40px;
	overflow: hidden;
	content: '';
	color: transparent; }

.bg-y-axis-max {
	position: absolute; 
	text-align: left;
	top: 10px; 
	width: 24px;
	right: -24px; }

.bg-y-axis-min {
	position: absolute; 
	text-align: right;
	right: -7px;
	width: 18px;
	top: 49px;
	width: 6px; }

.bg-x-marker {
	position: absolute;
	text-decoration: none;
	color: #333 !important;
	top: 67px;
	/* left pos for each x-marker is determined by js */
	display: block;
	border-left: 1px solid #ccc;
	padding-top: 4px;
	padding-left: 2px;
	height: 15px;
	width: 55px; }

/* prev/next pijltjes */
.bg-next,
.bg-prev {
	position: absolute;
	top: 86px;
	cursor: pointer;
	font-size: 14px;
	color: #333 !important;
	text-decoration: none; }

.bg-prev span,
.bg-next span {
	font-size: 9px;
	padding: 2px;
	opacity: 0; }
.bg-prev:hover span,
.bg-next:hover span {
	opacity: 1; }
.bg-prev {
	left: 0; }
.bg-next {
	right: 0; }
.bg-prev:before {
	content: '←';
}
.bg-next:after {
	content: '→';
}
.bg-prev span:before {
	content: 'ouder';
}
.bg-next span:before {
	content: 'nieuwer';
}


/* hover effects */

.bg-bar-holder:hover .bg-bar,
.bg-highlight-year .bg-bar,
.bg-highlight-year .bg-prev,
.bg-highlight-year .bg-next,
.bg-highlight-year .bg-x-marker,
.bg-highlight-range .bg-bar,
.bg-highlight-range .bg-x-marker {
	opacity: .24; }

.bg-bar-holder:hover .bg-bar:hover,
.bg-highlight-year .bg-belongs-to-highlighted-year,
.bg-highlight-month .bg-bar-highlighted,
.bg-highlight-range .bg-belongs-to-highlighted-range,
.bg-x-marker:hover {
	opacity: 1; }

/* groene selectiehighlight */
.bg-belongs-to-highlighted-range {
	border-bottom-color: #309b00;
	border-left-color: #309b00;
	color: #309b00 !important;
}

.bg-bar:hover {
	border-bottom-color: #333; }

.bg-x-marker,
.bg-prev,
.bg-next,
.bg-prev span,
.bg-next span,
.bg-bar {
	-webkit-transition-property: opacity;
	-webkit-transition-duration: .2s;
	-webkit-transition-timing-function: ease;
	-moz-transition-property: opacity;
	-moz-transition-duration: .2s;
	-moz-transition-timing-function: ease;
	-ms-transition-property: opacity;
	-ms-transition-duration: .2s;
	-ms-transition-timing-function: ease;
	-o-transition-property: opacity;
	-o-transition-duration: .2s;
	-o-transition-timing-function: ease;
}

.bg-bar-holder:hover .bg-bar:hover {
	-webkit-transition-duration: 0s;
	-moz-transition-duration: 0s; 
	-ms-transition-duration: 0s;
	-o-transition-duration: 0s; }