colormap_whitejet(), without any arguments, changes the colormap to a jet colormap with 0 as white, and changes the color axes limits from 0 to the current color axes maximum.

map = colormap_whitejet(...) returns the colormap.

... = colormap_whitejet(hax,N) uses the axes specified by "hax" instead of the current axes, and creates a colormap with N values. Note that both inputs are optional.

Inputs (Optional):
- hax - Handle to axes (default: current axes)
- N - # of rows of desired colormap (default: 256)

Outputs (Optional):
- map - Resultant "white jet" colormap