window.addEvent( 'domready', function() {
	expandToWindowSize();
});

function expandToWindowSize() {
	if( $("wrapper-out").offsetHeight < window.innerHeight ){
		$("content-main").setStyle('min-height', (window.innerHeight-69-$("header").offsetHeight) + "px" );
	}
}

function loadSlideshow(args, time) { 

	// preload images for slideshow
	for(var i = 0; i < args.length; i++ ) {
		var elem = new Element('img', { 'src': args[i] } );
	}
	
	var lastnumber = 1;
	
	$("headerimage-swap").setStyle('background', "url(" + args[lastnumber] + ") no-repeat center bottom");
	
	var args_length = args.length;
	var args_arr = args;
	
	var timerFunction = function() {
	
		if( lastnumber < args_length-1 )
			lastnumber++;
		else lastnumber = 1;
		
		$("header").setStyle('background', $("headerimage-swap").getStyle('background') );
		
		var myFx = new Fx.Tween( $('headerimage-swap'), {duration: 200});
		var myFx2 = new Fx.Tween( $('headerimage-swap'), {duration: 600});
		
		myFx.addEvent('complete', function() {
			$("headerimage-swap").setStyle('background', "url(" + args_arr[lastnumber] + ")");
			myFx2.start( 'opacity', 0.0, 1 );
		});
		
		myFx.start( 'opacity', 1, 0.0 );
		
	}
	
	timerFunction.periodical(time*1000);
}