function showSlideNo(slide_id, no) {
	document.getElementById(slide_id+"_1").style.display = 'none';
	document.getElementById(slide_id+"_2").style.display = 'none';
	document.getElementById(slide_id+"_3").style.display = 'none';

	document.getElementById("slidenav_1").className = 'num';
	document.getElementById("slidenav_2").className = 'num';
	document.getElementById("slidenav_3").className = 'num';

	document.getElementById(slide_id+"_"+no).style.display = 'block';
	document.getElementById("slidenav_"+no).className = 'num on';
	
	document.getElementById("zoom").href = document.getElementById("slideim_"+no).src;
}

function slideSwitch_1() {
    var $active = $('#slideshow_1 IMG.active');
    if ( $active.length == 0 ) $active = $('#slideshow_1 IMG:last');

    // use this to pull the images in the order they appear in the markup
    var $next =  $active.next().length ? $active.next()
        : $('#slideshow_1 IMG:first');

    // uncomment the 3 lines below to pull the images in random order
    // var $sibs  = $active.siblings();
    // var rndNum = Math.floor(Math.random() * $sibs.length );
    // var $next  = $( $sibs[ rndNum ] );


    $active.addClass('last-active');

    $next.css({opacity: 0.0})
        .addClass('active')
        .animate({opacity: 1.0}, 3000, function() {
            $active.removeClass('active last-active');
        });
}

$(function() {
    setInterval( "slideSwitch_1()", 10000 );
});

function slideSwitch_2() {
    var $active = $('#slideshow_2 IMG.active');
    if ( $active.length == 0 ) $active = $('#slideshow_2 IMG:last');

    var $next =  $active.next().length ? $active.next()
        : $('#slideshow_2 IMG:first');

    $next.addClass('last-active');

    $next.css({opacity: 0.0})
        .addClass('active')
        .animate({opacity: 1.0}, 1500, function() {
            $active.removeClass('active last-active');
        });
}

$(function() {
    setInterval( "slideSwitch_2()", 5000 );
});