// for gallery

function preloadImage(image){
	var nextImage = new Image;
	nextImage.onload = function(){
		$('picloader').style.display = 'none';
	}
	nextImage.src = image;
}

function movepic(direction){
	switch(direction){
		case 'next':
			if((currImage+1)==imageArray.length)
				return;
			else{
				$('picloader').style.display = '';
				preloadImage(imageArray[++currImage][0]);
				$('picture').src = imageArray[currImage][0];
				$('picturecaption').innerHTML = imageArray[currImage][1];
			}
			break;
		case 'previous':
			if(currImage==0)
				return;
			else{
				$('picloader').style.display = '';
				preloadImage(imageArray[--currImage][0]);
				$('picture').src = imageArray[currImage][0];
				$('picturecaption').innerHTML = imageArray[currImage][1];
			}
			break;
	}
}

function $(layerid){
	return document.getElementById(layerid);
}