verOnCell = function(d) {
		if (d.rect) {
			if (overNode) {
				legend.select('td.coverage' + Math.floor(overNode.pourcent)).style('background-color', overNode.color);

				var color = (overNode.parent != d.parent || d.parent == node ? overNode.color : siblingColor);

				overNode.rect.style('fill', color);
				overNode.text.style('fill', getTextColor(color));
			}

			overNode = d;

			if (overParent && overParent != d.parent) {
				overParent.children.forEach(resetColor);
				overParent = null;
			}

			