var header = new Array();
header[0] 	= 'head1.jpg'; 
header[1] 	= 'head2.jpg';
header[2] 	= 'head3.jpg';
header[3] 	= 'head4.jpg';
header[4] 	= 'head5.jpg';
header[5] 	= 'head6.jpg'; 
header[6] 	= 'head7.jpg';
header[7] 	= 'head8.jpg';
header[8] 	= 'head9.jpg';
header[9] 	= 'head11.jpg';
header[10] 	= 'head12.jpg';

$(document).ready(function(){
	//$('#container').corner({ tl: false, tr: false });
	
	var headerDiv = '#header';
	var headerImg = -1;
	
	setHeader();
	
	function setHeader() {
		if (headerImg == -1) {
			headerImg = Math.floor(Math.random() * header.length);
			
		} else {
			if (headerImg < header.length-1) {
				headerImg++;
				
			} else {
				headerImg = 0;
			}
		}
		
		$(headerDiv).css({ 'background-image': 'url(headers/' + header[headerImg] + ')' });
		$(headerDiv).css({ 'border-top': '1px solid #FFFFFF' });
		//$(headerDiv).corner({ antiAlias: true, bl: false, br: false });
		$(headerDiv).css({ 'background-position': '-2px -7px' });
	}
	$('#films').mouseover(function() {
		resetnavbar();
		$('#films').css({ 'background-position': '-87px -24px' });
		$('#subnav').css({ 'background-position': '1px -19px' });
		$('#subnav').html('<li><a id="sub-schedule" href="film_schedule_thursday">FILM SCHEDULE</a></li><li><a id="sub-parties" href="parties">PARTIES / SPECIAL EVENTS</a></li><li><a id="sub-globally" href="think_globally">THINK GLOBALLY SHOT LOCALLY</a></li><li><a id="sub-society" href="society_films">FILM SOCIETY SUMMER FILMS</a></li>');
	});
	$('#travel').mouseover(function() {
		resetnavbar();
		$('#travel').css({ 'background-position': '-331px -24px' });
		$('#subnav').css({ 'background-position': '1px -57px' });
		$('#subnav').html('<li><a id="sub-maps" href="maps">MAPS</a></li><li><a id="sub-hotels" href="hotels">INNS &amp; HOTELS</a></li><li><a id="sub-transportation" href="transportation">TRANSPORTATION</a></li>');
	});
	$('#involved').mouseover(function() {
		resetnavbar();
		$('#involved').css({ 'background-position': '-484px -24px' });
		$('#subnav').css({ 'background-position': '1px -76px' });
		$('#subnav').html('<li><a id="sub-donate" href="donate">DONATE</a></li><li><a id="sub-volunteer" href="volunteer">VOLUNTEER</a></li><li><a id="sub-sponsorship" href="sponsorship">SPONSORSHIP</a></li>');
	});
	
	$('#homebutton, #box, #explore, #news, #sponsors').mouseover(function() {
		resetnavbar();
		$('#subnav').css({ 'background-position': '1px 0' });
		$('#subnav').html('');
	});
	
	function resetnavbar() {
		$('#films').css({ 'background-position': '-87px 0' });
		$('#travel').css({ 'background-position': '-331px 0' });
		$('#involved').css({ 'background-position': '-484px 0' });
	}
});