add coerce:false
xml2json options as flowers!
Options object

Default values:

var options = {
    object: false,
    reversible: false,
    coerce: true,
    sanitize: true,
    trim: true,
    arrayNotation: false
};
object: Returns a Javascript object instead of a JSON string
reversible: Makes the JSON reversible to XML (*)
coerce: Makes type coercion. i.e.: numbers and booleans present in
attributes and element values are converted from string to its
correspondent data types.
trim: Removes leading and trailing whitespaces as well as line
terminators in element values.
arrayNotation: XML child nodes are always treated as arrays
sanitize: Sanitizes the following characters present in element values: