manmaru.datautil.js :
Javascript utilities for cookie data manipulating.
setCookie(c_name,value,exdays) ->
Set Cookie
@param c_name: Cookie file name
@param value: string
@param exdays: expiration day
getCookie(c_name) ->
Get Cookie
@param c_name: Cookie file name
@return string
deleteCookie(c_name) ->
Delete Cookie
@param c_name: Cookie file name