var itis;

function show(imgsrc,obj){
document.getElementById('hideme').style.visibility = "visible";
window.document['bigimage'].src = "";
window.document['bigimage'].src = imgsrc;
document.getElementById('bigpic').style.visibility = "visible";
setImgPos(document.getElementById(obj));
for (x=0; x<=numpics; x++)
{
  if (imgsrc == imgs[x]) {
	itis = x
  }
} 
}

function loadcomplete(){
document.getElementById('hideme').style.visibility = "hidden";
}

function hide(){
document.getElementById('bigpic').style.visibility = "hidden";
document.getElementById('hideme').style.visibility = "hidden";
}


function previmg(){
if (itis >0){
	itis = itis-1
}
var imgsrc = window.document['bigimage'].src;
imgsrc = imgs[itis];
document.getElementById('hideme').style.visibility = "visible";
window.document['bigimage'].src = imgsrc;
}

function nextimg(){
if (itis < numpics){
	itis = itis+1
}
var imgsrc = window.document['bigimage'].src;
imgsrc = imgs[itis];
document.getElementById('hideme').style.visibility = "visible";
window.document['bigimage'].src = imgsrc;
}

function setImgPos(obj)
{
	var coors = findPos(obj);
	document.getElementById('bigpic').style.top = coors[1] + 'px';
}

function findPos(obj)
{
	var curleft = curtop = 0;
	if (obj.offsetParent) {
		curleft = obj.offsetLeft
		curtop = obj.offsetTop
		while (obj = obj.offsetParent) {
			curleft += obj.offsetLeft
			curtop += obj.offsetTop
		}
	}
	return [curleft,curtop];
}