lastId = -1;


function imageRandom(){
	if(stopRandomImage)return;
	//ri = getRandomIndex(imgArr.length);
	ri = lastId + 1;
	if(ri == imgCount)ri = 0;
	setImage(ri);
}

/*
function getRandomIndex(limit){
	while(r = String(Math.random()).substring(7,7 + String(limit).length)){
		if(parseInt(r)< limit)return r;
	}
}
*/

function setImage(id){
	if(lastId != -1)document.getElementById('item_' + lastId).style.backgroundImage = 'none';
	lastId = id;
	document.getElementById('item_' + id).style.backgroundImage = 'url(fileadmin/images/item_bg_home.gif)';
	document.getElementById('bigImage').src=imgArr[id];
}



function getPosition(obj) {
  var pos = { x:0, y:0 };

  do {
    pos.x += obj.offsetLeft;
    pos.y += obj.offsetTop;
  } while (obj = obj.offsetParent);

  return pos;
}

var stopRandomImage = false;

function setCurrentImage(n){
	stopRandomImage = true;
	setImage(n);
}