function show_tooltip(event,word) {

		y = -10 + event.clientY + document.body.scrollTop;
		x = 50 + event.clientX + document.body.scrollLeft;

		document.getElementById('tooltip').innerHTML = word;
		document.getElementById('tooltip').style.top = y;
		document.getElementById('tooltip').style.left = x;
		document.getElementById('tooltip').style.display = "block";
	}

	function move_tooltip(event) {

		y = -15 + event.clientY + document.body.scrollTop;
		x = 50 + event.clientX + document.body.scrollLeft;

		document.getElementById('tooltip').style.top = y;
		document.getElementById('tooltip').style.left = x;
	}

	function hide_tooltip(event) {

		document.getElementById('tooltip').style.display = "none";
	}