+ /**
+ * writeImage:
+ * write an image in old gnumberic format (needs base64 data to write it)
+ *
+ *
+ * @param {Number} row row to put it in (rows start at 0)
+ * @param {Number} col column to put it in
+ * @param {Number} data the base64 description of the images
+ * @param {Number} width image width
+ * @param {Number} width image height
+ *
+ */