var show_thumb = false;
var thumb = null;
function showThumbnail(which,e)
{
	thumb = document.getElementById('thumb');
	if (show_thumb&&thumb&&thumb.style.visibility=='hidden') {
		thumb.style.left       = e.pageX ? pageXOffset + e.clientX + 20 : document.body.scrollLeft + e.x + 20;
		thumb.style.top        = e.pageY ? pageYOffset + e.clientY + 10 : document.body.scrollTop + e.y + 10;
		thumb.style.visibility = 'visible';
		thumb.innerHTML        = '<img src="' + which + '">';
	}
}
function closeThumbnail()
{
	if (show_thumb&&thumb) thumb.style.visibility = 'hidden';
}