function chgImg(imgId,ImgSrc) {
	if(document.getElementById) {
		eval('document.getElementById("'+imgId+'").src ='+ImgSrc+'.src');
	} else if (document.layers) {
		eval('document.'+imgId+'.src = '+ImgSrc+'.src');
	} else {
		eval('document.images.'+imgId+'.src = '+ImgSrc+'.src');
	}
}

function swapImage(pos) {
	if(document.getElementById) {
		document.getElementById("photo").src = Pic[pos].src;
	} else if (document.layers) {
		document.photo.src = Pic[pos].src;
	} else {
		document.images.photo.src = Pic[pos].src;
	}
	if(Pic[pos].caption) UpdateME(pos);
}

function UpdateME(pos) {
		var CAPTIONTEXT=Pic[pos].caption;
		var SUBMITTEDBYTEXT=Pic[pos].submitter;
		if(document.getElementById) {
			document.getElementById('CAPTION').innerHTML = CAPTIONTEXT;
			document.getElementById('SUBMITTEDBY').innerHTML = SUBMITTEDBYTEXT;
		} else if(document.all) { 
			document.all['CAPTION'].innerHTML = CAPTIONTEXT;
			document.all['SUBMITTEDBY'].innerHTML = SUBMITTEDBYTEXT;
		} else if(document.layers) {
			document.forms['credits'].CAPTION.value = CAPTIONTEXT.replace('<br />',' - ');
			document.forms['credits'].SUBMITTEDBY.value = SUBMITTEDBYTEXT;
		}
	}

function viewNext() {
	if (pos == totalPics-1) { 
		pos = 0; 
	} else { 
		pos = pos+1; 
	}
	swapImage(pos);
}

function viewLast() {
	if (pos == 0) { 
		pos = totalPics-1; 
	} else { 
		pos = pos-1;
	}
	swapImage(pos);
}