var upload_photo_valid = 0;
var supported_image_types = {'jpg':1, 'jpeg':1, 'png':1, 'gif':1};

function startUpload(uploading_photo) {
	$('upload_status_img'+uploading_photo).innerHTML = '<img src="img/ajax-loader.gif" style="padding:1px;">';
	$('upload_status_photo'+uploading_photo).innerHTML = uploading_msg;
}

function completeUpload(response,uploaded_photo_id, photo_id, album_id, photo_thumb) {
	$('upload_status_img'+uploaded_photo_id).innerHTML = '&nbsp;';
	$('upload_status_photo'+uploaded_photo_id).innerHTML = '<small>' + response +  '</small>';
	document.forms["picform"+uploaded_photo_id].reset();
	upload_photo_valid--;
	if(upload_photo_valid == 0){
		vis_show("submit_button");
	}
	show("uploadedPhotos");
	$("uploadedPhotosList").innerHTML = '<li class="deep photo_thumb"><a href="photo.php?photo='+photo_id+'&amp;album='+album_id+'" style="background: url('+photo_thumb+') center center no-repeat"></a></li>' + $("uploadedPhotosList").innerHTML;
}

function uploadFiles() {
	var albumId = $("my_albums").value;
	if(albumId == 0){$("my_albums").focus(); return;}
	for(i = 1; i <= upload_photo_count; i++){
		str = $("reg_ph"+i).value;
		$("albumId"+i).value = albumId;
		ext = str.substring(str.lastIndexOf('.')+1,str.length).toLowerCase();
		if(supported_image_types[ext] == 1){
			upload_photo_valid++;
			startUpload(i);
			var n = 'f' + Math.floor(Math.random() * 99999);
			var d = document.createElement('div');
			//d.innerHTML = '<iframe style="display:none" src="about:blank" id="'+n+'" name="'+n+'" onload="completeUpload(\''+n+'\','+i+')"></iframe>';
			d.innerHTML = '<iframe style="display:none" src="about:blank" id="'+n+'" name="'+n+'"></iframe>';
			$("home").appendChild(d);
			document.forms["picform"+i].target = n;
			document.forms["picform"+i].submit();
		}
		else if (ext != ""){ alert("Допустими разширения за изображенията са .jpg, .jpeg, .png, .gif !\nОпитвате се да качите файл с разширение ." + ext + "!");}
	}
	if(upload_photo_valid > 0){
		vis_hide("submit_button");
	}
}