function getPosition(e) {
    e = e || window.event;
    var cursor = {x:0, y:0};
    if (e.pageX || e.pageY) {
        cursor.x = e.pageX;
        cursor.y = e.pageY;
    } 
    else {
        var de = document.documentElement;
        var b = document.body;
        cursor.x = e.clientX + 
            (de.scrollLeft || b.scrollLeft) - (de.clientLeft || 0);
        cursor.y = e.clientY + 
            (de.scrollTop || b.scrollTop) - (de.clientTop || 0);
    }
    return cursor;
}

function showDescription(text, e)
{
	var description = document.getElementById('word_description');
	var cursor = getPosition(e);
	description.style.left = cursor.x+'px';
	description.style.top = (cursor.y+12)+'px';
	description.innerHTML = text;
	description.style.display = 'block';
}

function resetDescription()
{
	var description = document.getElementById('word_description');
	description.style.left = '0px';
	description.style.top = '0px';
	description.innerHTML = '';
	description.style.display = 'none';
}