Design and create an XML document (customer.xml) for storing information of all customers. For each customer, you need to keep the system generated customer id, first name, surname, unique email address, password and contact phone number. 2) Design an HTML page (register.htm) for new customer registration. The inputs include email address, first name, last name, password, re-typed password (for double checking) and optional contact phone number. 3) Create client and server-side programs to get and validate inputs. Either the clientside or the server-side program will check (a) all inputs except the contact phone number are given, (b) the password is the same as the re-typed one, (c) the optional contact phone number shall follow either (0d)dddddddd or 0d dddddddd, and (d) the email address is unique (i.e., it has not been used by other customers in customer.xml). If not, the corresponding error message will be displayed.
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