var slider_position = 0;
var slider_set = 0;
var slider_set_width = 912;
var slider_sets = 3; /* N.B. Sets will be numbered starting at 0 in the HTML */
var slider_position_min = 0;
var slider_position_max = 0;
var image_path = 'http://www.mirriad.com/mirriad5/wp-content/themes/mirriad5/images/gallery/'

function slide_to(slide_to_set) {
	slider_set = slide_to_set;
	slider_position = slider_set * slider_set_width * -1;
	$('ul#slider').animate({'left':slider_position + 'px'}, '20000');
	$('ul#sliderControls li.current a img').attr('src', image_path + 'slide_page_grey.gif');
	$('ul#sliderControls li.current').removeClass('current');
	$('ul#sliderControls li#sliderPage' + slide_to_set).addClass('current');
	$('ul#sliderControls li.current a img').attr('src', image_path + 'slide_page.gif');
	
	if (slider_set == 0) {
		$('ul#sliderControls li#sliderPageLeft a img').attr('src', image_path + 'slide_left_grey.gif');
	} else {
		$('ul#sliderControls li#sliderPageLeft a img').attr('src', image_path + 'slide_left.gif');
	}
	if (slider_set == slider_sets - 1) {
		$('ul#sliderControls li#sliderPageRight a img').attr('src', image_path + 'slide_right_grey.gif');
	} else {
		$('ul#sliderControls li#sliderPageRight a img').attr('src', image_path + 'slide_right.gif');
	}
}

function slide_left() {
	if (slider_set != 0) {
		slider_set = slider_set - 1;
		slide_to(slider_set);
	}
}

function slide_right() {
	if (slider_set != slider_sets - 1) {
		slider_set = slider_set + 1;
		slide_to(slider_set);
	}
}

function show_video(video) {
	$('ul#slider_logos li.logo_video').css('display', 'none');
	$('ul#slider_logos li.logo_video_' + video).css('display', 'block');
}