# Extract float from text string (combine all numbers), or NaN
parseFloatAll = ( str ) ->
    num = str.toString().match(/[0-9.,]+$/g)    # strip out all chars except nums, dot, commma
    if num isnt null
        num = num[ 0 ].split( ',' ).join( '' )  # remove commas
        return parseFloat( num )
    return NaN