var imgFiles = new Array (	"apartment_1",
							"balcony_1",
							"balcony_2",
							"bedroom_1",
							"bedroom_2",
							"bedroom_3",
							"berggroen_1",
							"bike",
							"dining_1",
							"dining_2",
							"glacier_1",
							"glacier_2",
							"golf",
							"kitchen_1",
							"lake",
							"living_1",
							"living_2",
							"marketplace_1",
							"marketplace_2",
							"mittersill_1",
							"mittersill_2",
							"mittersill_winter_1",
							"mittersill_winter_2",
							"mittersill_winter_3",
							"mountains_1",
							"mountains_2",
							"mountains_3",
							"mountains_4",
							"mountains_5",
							"ski",
							"skiing_1",
							"skiing_2",
							"skiing_3",
							"swim",
							"waterfall_1",
							"waterfall_2",
							"waterfall_3",
							"waterfall_4",
							"waterfall_5" );

var imgCaps = new Array (	"Apartment Stefanie",
							"Summer balcony view",
							"Winter balcony view",
							"Bedroom",
							"Bedroom",
							"Bedroom" );

var LAST_IMG	= 38;
var leftImg		= 0;
var centreImg	= 1;
var rightImg	= 2;

function bigImg ( img )
{
	var imgFile = new Image ();
	
	if ( img.indexOf ( ".jpg" ) == -1 )
	{
		imgFile.src = "images/" + img + ".jpg";
	}
	else
	{
		imgFile.src = img;
	}
	
	var height	= imgFile.height / 2;
	var width	= imgFile.width / 2;
	
	newWindow = window.open ( imgFile.src, "picWin", "width=" + 800 + ", height=" + 600 + ", scrollbars=yes")
	
	newWindow.focus ();
}

function bigImgGallery ( id )
{
	var imgSrc = document.getElementById ( "gallery_centre" ).src;
	
	imgSrc = imgSrc.replace ( "thumbs", "images" );
	
	bigImg ( imgSrc );
}

function scroll ( dir )
{
	var gallery_left	= document.getElementById ( "gallery_left" ).src;
	var gallery_centre	= document.getElementById ( "gallery_centre" ).src;
	var gallery_right	= document.getElementById ( "gallery_right" ).src;

	if ( dir == -1 )
	{
		centreImg --;
		
		if ( centreImg < 0 )
		{
			centreImg = LAST_IMG;
		}
	}
	else if ( dir == 1 )
	{
		centreImg ++;
		
		if ( centreImg > LAST_IMG )
		{
			centreImg = 0;
		}
	}
	
	leftImg = centreImg - 1;
	
	if ( leftImg < 0 )
	{
		leftImg = LAST_IMG;
	}
	
	rightImg = centreImg + 1;
	
	if ( rightImg > LAST_IMG )
	{
		rightImg = 0;
	}
	
	document.getElementById ( "gallery_left" ).src		= "thumbs/" + imgFiles[leftImg] + ".jpg";
	document.getElementById ( "gallery_centre" ).src	= "thumbs/" + imgFiles[centreImg] + ".jpg";
	document.getElementById ( "gallery_right" ).src		= "thumbs/" + imgFiles[rightImg] + ".jpg";
	
	document.getElementById ( "caption" ).value = imgCaps[centreImg];
}