//UPLOAD
function startUpload(){
			document.getElementById('f1_upload_process').style.visibility = 'visible';
			document.getElementById('f1_upload_form').style.visibility = 'hidden';
			return true;
}

function stopUpload(success,fileid){
			var result = '';
			if (success == 1){
				 result = '<span class="msg">Bild Datei hochgeladen!<\/span><br/><br/>';
		 addImage("/tools/uploaded.thumbnail.php?id=" + fileid);
			}
			else {
				 result = '<span class="emsg">Es ist ein Fehler aufgetreten!' + success + '<\/span><br/><br/>';
			}
			document.getElementById('f1_upload_process').style.visibility = 'hidden';
			document.getElementById('f1_upload_form').innerHTML = result + '<label>Wähle ein Bild aus: <input name="myfile" type="file" size="30"  onchange="startUpload();document.pictureform.submit();" /><\/label>';
			document.getElementById('f1_upload_form').style.visibility = 'visible';

		return true;

}


//HANDLERS
function addImage(src) {
	var newImg = document.createElement("img");
	newImg.style.margin = "5px";

	document.getElementById("thumbnails").appendChild(newImg);
	if (newImg.filters) {
		try {
			newImg.filters.item("DXImageTransform.Microsoft.Alpha").opacity = 0;
		} catch (e) {
			// If it is not set initially, the browser will throw an error.  This will set it if it is not set yet.
			newImg.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=' + 0 + ')';
		}
	} else {
		newImg.style.opacity = 0;
	}

	newImg.onload = function () {
		fadeIn(newImg, 0);
	};
	newImg.src = src;
}

function fadeIn(element, opacity) {
	var reduceOpacityBy = 5;
	var rate = 30;	// 15 fps


	if (opacity < 100) {
		opacity += reduceOpacityBy;
		if (opacity > 100) {
			opacity = 100;
		}

		if (element.filters) {
			try {
				element.filters.item("DXImageTransform.Microsoft.Alpha").opacity = opacity;
			} catch (e) {
				// If it is not set initially, the browser will throw an error.  This will set it if it is not set yet.
				element.style.filter = 'progid:DXImageTransform.Microsoft.Alpha(opacity=' + opacity + ')';
			}
		} else {
			element.style.opacity = opacity / 100;
		}
	}

	if (opacity < 100) {
		setTimeout(function () {
			fadeIn(element, opacity);
		}, rate);
	}
}

//JQUERY IMAGE GALLERY
function newsscoller(prev) {

	//Get the current selected item (with selected class), if none was found, get the first item
	var current_image = $('#gallery li.selected').length ? $('#gallery li.selected') : $('#gallery li:first');
	var current_excerpt = $('#excerpt li.selected').length ? $('#excerpt li.selected') : $('#excerpt li:first');

	//if prev is set to 1 (previous item)
	if (prev) {

		//Get previous sibling
		var next_image = (current_image.prev().length) ? current_image.prev() : $('#gallery li:last');
		var next_excerpt = (current_excerpt.prev().length) ? current_excerpt.prev() : $('#excerpt li:last');

	//if prev is set to 0 (next item)
	} else {

		//Get next sibling
		var next_image = (current_image.next().length) ? current_image.next() : $('#gallery li:first');
		var next_excerpt = (current_excerpt.next().length) ? current_excerpt.next() : $('#excerpt li:first');
	}

	//clear the selected class
	$('#excerpt li, #gallery li').removeClass('selected');

	//reassign the selected class to current items
	next_image.addClass('selected');
	next_excerpt.addClass('selected');

	//Scroll the items
	$('#mask-gallery').scrollTo(next_image, 800);
	$('#mask-excerpt').scrollTo(next_excerpt, 800);

}