/*
function prepareGallery() {
	if (!document.getElementByTagName) return false;
	if (!document.getElementById) return false;
	if (!document.getElementById("previs")) return false;
	var thumbs = document.getElementById("previs");
	var image = thumbs.getElementByTagName("img");
	for ( var i=0; i < image.length; i++) {
		image[i].onclick = function() {
			return showPic(this);
		}
	}
}
*/
function showPic(whichpic) {
	var source = whichpic.getAttribute("rel");
	var placeholder = document.getElementById("placeholder");
	placeholder.setAttribute("src", source);
}

function hidePic(whichpic) {
	
	if ( whichpic!=0 ) {
		var source = "./files/Gallery/image_"+whichpic+"_thumb.jpg";
	} else {
		var source = "./lib/i/placeholder.gif";
	}
	var placeholder = document.getElementById("placeholder");
	placeholder.setAttribute("src", source);
}