Color2Num()

         Converts a color string into a color numeric

    Syntax:

         Color2Num ( cColor ) -> nColor

         cColor : The color in string format

    Description:

         Converts a color in string format into numeric format. If the
         entry parameter is a string with more than a color, the style
         "W/B, B/W...", is returned to the numeric value of the fist
         element.

    Return:

         Type color in numeric format.

    Example:

         ? Color2Num ( "W+/B" )   //   31