function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImages() {
	if (document.images && (preloadFlag == true)) {
		for (var i=0; i<changeImages.arguments.length; i+=2) {
			document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
		}
	}
}

var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		valikko_hover_over = newImage("themes/ipanalle_teema/images/valikko_hover-over.png");
		valikko_hover_copy_over = newImage("themes/ipanalle_teema/images/valikko_hover-copy-over.png");
		valikko_hover_copy_2_over = newImage("themes/ipanalle_teema/images/valikko_hover-copy-2-over.png");
		valikko_hover_copy_3_over = newImage("themes/ipanalle_teema/images/valikko_hover-copy-3-over.png");
		preloadFlag = true;
	}
}

function toggleLayer( whichLayer )
{
  var elem, vis;
  if( document.getElementById ) // this is the way the standards work
    elem = document.getElementById( whichLayer );
  else if( document.all ) // this is the way old msie versions work
      elem = document.all[whichLayer];
  else if( document.layers ) // this is the way nn4 works
    elem = document.layers[whichLayer];
  vis = elem.style;
  // if the style.display value is blank we try to figure it out here
  if(vis.display==''&&elem.offsetWidth!=undefined&&elem.offsetHeight!=undefined)
    vis.display = (elem.offsetWidth!=0&&elem.offsetHeight!=0)?'block':'none';
  vis.display = (vis.display==''||vis.display=='block')?'none':'block';
}

	function hide_product_in_cart_label()
	{
		document.getElementById('div_for_product_in_cart').style.display = 'none';
	}
	
	function show_product_in_cart_label()
	{
		document.getElementById('div_for_product_in_cart').style.display = 'block';
		
		var timer = setTimeout(hide_product_in_cart_label, 2500);
	}