function checkFontSmoothing() {
	// IE has screen.fontSmoothingEnabled - sweet!
	if (typeof(screen.fontSmoothingEnabled) == true) {
		return true;
	} else {

		try {

			// Create a 35x35 Canvas block.
			var canvasNode = document.createElement('canvas');
			canvasNode.width = "35";
			canvasNode.height = "35"

			// We must put this node into the body, otherwise
			// Safari Windows does not report correctly.
			canvasNode.style.display = 'none';
			document.body.appendChild(canvasNode);
			var ctx = canvasNode.getContext('2d');

			// draw a black letter 'O', 32px Arial.
			ctx.textBaseline = "top";
			ctx.font = "32px Arial";
			ctx.fillStyle = "black";
			ctx.strokeStyle = "black";

			ctx.fillText("O", 0, 0);

			// start at (8,1) and search the canvas from left to right,
			// top to bottom to see if we can find a non-black pixel.  If
			// so we return true.
			for (var j = 8; j <= 32; j++) {
				for (var i = 1; i <= 32; i++) {

					var imageData = ctx.getImageData(i, j, 1, 1).data;
					var alpha = imageData[3];

					if (alpha != 255 && alpha != 0) {
						return true; // font-smoothing must be on.
					}
				}

			}

			// didn't find any non-black pixels - set to false.
			return false;
		}

		catch (ex) {
			// Something went wrong (for example, Opera cannot use the
				// canvas fillText() method.  Return null (unknown).
				return null;
			}
		}
   }

Event.observe(window, 'dom:loaded', function() {
	var fontsSmoothed = checkFontSmoothing();

	if (fontsSmoothed === true) {
		document.body.addClassName('fSmoothingYes');
	} else if (fontsSmoothed === false) {
		document.body.addClassName('fSmoothingNo');
		} else document.body.addClassName('fSmoothingNull');


	});