var fileBottomNavCloseImage = "admin/_pic/closelabel.gif";
var fileLoadingImage = "admin/_pic/loading.gif";
//var images = new Array();
var image_info = new Array();
var gallery_pages = new Array();
var index_page = 1;
var test_path = "admin/thumbnail_file.php?target_width=731&target_height=550&file=../";
var curent_thumb = 0;
var page_thumbs = 8;
function view_page(increment)
{
	curent_thumb = curent_thumb + increment;
	if(curent_thumb<0)
		{
			if(index_page==1)
				curent_thumb = (image_info.length%page_thumbs)-1;
			else
				curent_thumb = page_thumbs-1;

			thumb_group(increment); }

	if(curent_thumb>(page_thumbs-1))
		{ curent_thumb = 0;  thumb_group(increment); }

	if((curent_thumb + (page_thumbs* (index_page-1)))>=image_info.length)
		{ curent_thumb = 0;  index_page=0; thumb_group(1); }

	if((curent_thumb>(-1)) &&(curent_thumb<(page_thumbs)))
		{
			position = curent_thumb + (page_thumbs* (index_page-1));
			set_picture(position,image_info[position]['title'],'main_image');
		}
}

function thumb_group(increment)
{
	index_page = index_page + increment
	if(index_page<=0) index_page=(gallery_pages.length -1)
	if(index_page>=gallery_pages.length) index_page=1


	for(i=1;i<gallery_pages.length;i++)
	{
		if(i==index_page)
		{
			$(gallery_pages[i]).style.display="block";
		}
		else
		{
			$(gallery_pages[i]).style.display="none";
		}
	}
}

function set_picture(key,title,img_id)
{
	$('gallery_wait').setOpacity(0.5);
	$('gallery_wait').style.display='block';
	var imgPreloader = new Image();
		imgPreloader.onload = (function(){
            $(img_id).src = images[key].src.replace("&amp;", "&");
            //$(img_id).src = image_info[key]['src'].replace("&amp;", "&");
            $(img_id).title = title;
			$(img_id).setAttribute('alt',title);
			if(img_id=='main_image')	$('main_image_name').innerHTML = title;

            //$('gallery_wait').setOpacity(1);
			$('gallery_wait').style.display="none";
        }).bind(this);
        //imgPreloader.src = image_info[key]['src'].replace("&amp;", "&");
        imgPreloader.src = images[key].src.replace("&amp;", "&");
    curent_thumb = (key%page_thumbs);
}