function show_slide(id) {
	//disable buttons
	$('link_1').disabled = true;
	$('link_2').disabled = true;
	
	
	//fade the proper slide
	var id2 = '';
	if(id == 1) {
		if($('img_2').style.display == '') {
			id2 = 2;
		}
		
	}
	else if(id == 2) {
		if($('img_1').style.display == '') {
			id2 = 1;
		}
		
	}
	
	
	//show the slide
	if(id2 != '') {	
		new Effect.Appear('img_' + id);
		new Effect.Appear('img_top_' + id);
        new Effect.Fade('img_' + id2, {from: 1, to: 0});
        new Effect.Fade('img_top_' + id2, {from: 1, to: 0});
	}
	
	//enable buttons
	setTimeout("$('link_1').disabled = false;", 1100);
	setTimeout("$('link_2').disabled = false;", 1100);
	
}

var indexInterval = "";
function start_index_slideshow() {
	indexInterval = setInterval("show_index_slide()", 5000 );
}

function stop_index_slideshow() {
	clearInterval(indexInterval);
}

function show_index_slide() {
	if(slide1 == 1) {
		slide1 = 0;
		slide2 = 1;
		show_slide(2);
	}
	else if(slide2 == 1) {
		slide2 = 0;
		slide1 = 1;
		show_slide(1);
	}
}


function start_content_slideshow() {
	setInterval("show_content_slide()", 5000 );
}

var slide1 = 1;
var slide2 = 0;

function show_content_slide() {
	if(slide1 == 1) {
		slide1 = 0;
		slide2 = 1;
		new Effect.Appear('content_slide_2');
		new Effect.Appear('content_text_2');
        new Effect.Fade('content_slide_1', {from: 1, to: 0});
        new Effect.Fade('content_text_1', {from: 1, to: 0});
	}
	else if(slide2 == 1) {
		slide2 = 0;
		slide1 = 1;
		new Effect.Appear('content_slide_1');
		new Effect.Appear('content_text_1');
        new Effect.Fade('content_slide_2', {from: 1, to: 0});
        new Effect.Fade('content_text_2', {from: 1, to: 0});
	}
	
}