var thumb = null;

function show_title(which,e) {
	thumb = document.getElementById('thumb');
        
	if ( 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 : document.body.scrollTop  + e.y;
		thumb.style.visibility = 'visible';
		thumb.style.zIndex = 100;
		thumb.innerHTML        = which;
	}
}

function close_title() {
	if( thumb )
		thumb.style.visibility = 'hidden';
}