1. A method of operating of a system of global electronic trade in the Internet, wherein the system of global electronic trade in the Internet possesses by a combination of properties: (1) the system of global electronic trade in the Internet comprises a host server, including a Web site or other network communication program with multi-language support; (2) the host server of the system of global electronic trade in the Internet comprises: a database of a Global Classification of Branches of Economy, Goods and Services, a database of structured information about proposed goods and services, a database of structured information about requests of buyers, a database of confidential information about legal entities, a database of open information about legal entities, and a security database; (3) the host server of the system of global electronic trade in the Internet connects by means of the Internet with numerous computers of sellers, wherein the computers of sellers comprise password generators for entrance into the system of global electronic trade in the Internet, and wherein sellers communicate with the Web site and with databases of the host server of the system of global electronic trade in the Internet with help of a Web browser and with help of the Internet; and (4) the host server of the system of global electronic trade in the Internet connects by means of the Internet with numerous computers of buyers, wherein the computers of buyers comprise password generators for entrance into the system of global electronic trade in the Internet, and wherein buyers communicate with the Web site and with databases of the host server of the system of global electronic trade in the Internet with help of a Web browser and with help of the Internet; and wherein the method of operating of the system of global electronic trade in the Internet, wherein the system of global electronic trade in the Internet possesses by said combination of properties, comprises a combination of steps: a) creating of the database of the Global Classification of Branches of Economy, Goods and Services, where the Global Classification of Branches of Economy, Goods and Services represents by itself a hierarchical tree with names and corresponding codes of divisions and subdivisions of branches of world Economy, and where terminal divisions and subdivisions of branches of world Economy comprise names and corresponding codes of goods and services, and where terminal divisions and subdivisions of branches of world Economy comprise main characteristics of goods and services, and wherein the database of the Global Classification of Branches of Economy, Goods and Services at least comprises: (1) names of goods and services and corresponding codes of goods and services according to the Global Classification of Branches of Economy, Goods and Services; and (2) main characteristics of goods and services, which comprise main technical characteristics of goods or services and basic performances of quality of goods or service; b) registration of users: of sellers and buyers in the system of global electronic trade in the Internet, where the registration comprises at least a combination of steps: (1) filling a registration form by a user, where the registration form comprises data: a name of a legal entity; a state registration number of the legal entity; a date of registration of the legal entity by a state agency; a location address of the legal entity; a legal address of the legal entity; an e-mail address; and a telephone number of the legal entity; (2) inserting a name and a job position of an official representative of the legal entity, who can sign contracts and other official documents on a behalf of the legal entity, into the registration form; (3) inserting a scanned signature of the official representative of the legal entity into the registration form; (4) inserting a scanned seal into the registration form, if the legal entity has a seal; (5) creating of a user domain in a database of the system of global electronic trade in the Internet, where all data of this user will be stored; (6) sending a message to e-mail address of the user with an account number of the system of global electronic trade in the Internet, where the user can provide a registration fee; (7) sending a letter by the system of global electronic trade in the Internet to the user in case of a payment of the registration fee by the user, where this letter includes: a password for entrance in the system, a password generator, and a mail notification of receiving of the letter with a confirmation by a post office of the location address of the legal entity and the name of the legal entity; (8) deleting of the user domain in case of absence of the payment of the registration fee during a certain period; (9) activation of the user in the system and providing of the user by a registration number of user of the system of global electronic trade in the Internet, in case of the confirmation by the post office of the location address of the legal entity and the name of the legal entity; (10) creating of electronic codes of the signature and of the seal of the legal entity by the system of global electronic trade in the Internet; and (11) deleting of the user domain and returning the registration fee to the user in case of an absence of the confirmation by the post office of the location address of the legal entity and the name of the legal entity; c) creating of the database of confidential information about legal entities for preparation of contracts and other official documents in a frame of the system of global electronic trade in the Internet on the basis of data, provided by users during registration, where this database comprises for a legal entity: (1) a name of the legal entity; (2) a state registration number of the legal entity; (3) a date of registration of the legal entity by a state agency; (4) a legal address of the legal entity; (5) a location address of the legal entity; (6) a e-mail address and a telephone number of the legal entity; (7) a name and a job position of an official representative of the legal entity, who can sign contracts and other official documents on a behalf of the legal entity; (8) a scanned signature of the official representative of the legal entity, who can sign contracts and other official documents on the behalf of the legal entity; (9) an electronic code of the signature of the official representative of the legal entity, who can sign contracts and other official documents on the behalf of the legal entity; (10) a scanned seal of the legal entity; and (11) an electronic code of the seal of the legal entity; d) creating of the database of open information about legal entities, where this database comprises for a legal entity: (1) a name of the legal entity; (2) a country of location of the legal entity; (3) a field of activity of the legal entity according to the Global Classification of Branches of Economy, Goods and Services; (4) a kind of business of the legal entity (producer or intermediate party); and (5) additional information about the legal entity, which is inserted in the database optionally, including: a date of foundation of the legal entity, capacity of production or service, purchasing capacity, quality standards, number of employees, pictures of facilities, and an address of Web site of the legal entity; e) creating of the database of structured information about proposed goods and services, comprising a combination of steps: (1) filling an application form with an offer of a seller, wherein the application form comprises data: a name of goods or service and a code of goods or service in conformity with the Global Classification of Branches of Economy, Goods and Services, a price of offered goods or service, wherein dimension of data of price of goods or service the seller chooses from a list, suggested by the system of global electronic trade in the Internet, a quantity of offered goods or a volume of offered service, wherein dimension of quantity of goods or volume of service the seller chooses from a list, suggested by the system of global electronic trade in the Internet, quality standards of offered goods or service, which the seller chooses from local or international quality standard, suggested by the system of global electronic trade in the Internet, main characteristics of offered goods or service, in conformity with the database of the Global Classification of Branches of Economy, Goods and Services, a country of location of producer, which the seller chooses from a list, suggested by the system of global electronic trade in the Internet, and an additional information about goods or service, where the system of global electronic trade in the Internet defines, during process of filling of this application form, names, codes, dimension, and a format of all abovementioned data; (2) recording of the data, inserted in the application form by the seller, in the database of information about proposed goods and services, where the specified data include: the name of goods or service and the code of goods or service in conformity with the Global Classification of Branches of Economy, Goods and Services, the price of offered goods or service, the quantity of offered goods or the volume of offered service, quality standards of offered goods or service, main characteristics of offered goods or service, in conformity with the database of the Global Classification of Branches of Economy, Goods and Services, the country of location of producer, and the additional information about goods or service, and where all abovementioned data are recorded in strictly certain places of the database; and (3) inserting into the same record of the database of information about proposed goods and services a name of a legal entity of the seller and a country of location of the seller from the database of open information about legal entities; f) creating of the database of structured information about requests of buyers, comprising a combination of steps: (1) filling an application form with a request of a buyer, wherein the application form comprises data: a name of goods or service and a code of goods or service in conformity with the Global Classification of Branches of Economy, Goods and Services, a quantity of goods or a volume of service, wherein dimension of quantity of goods or volume of service the buyer chooses from a list, suggested by the system of global electronic trade in the Internet, main characteristics of goods or service, in conformity with the database of the Global Classification of Branches of Economy, Goods and Services, a desired price of goods or service, wherein dimension of data of price of goods or service the buyer chooses from a list, suggested by the system of global electronic trade in the Internet, a desired quality standards of goods or service, which the buyer chooses from local or international quality standard, suggested by the system of global electronic trade in the Internet, a country of location of producer, which the buyer chooses from a list, suggested by the system of global electronic trade in the Internet, and an additional information about goods or service, where the system of global electronic trade in the Internet defines, during process of filling of this application form, names, codes, dimension, and a format of all abovementioned data; (2) recording of the data, inserted in the application form by the buyer, in the database of information about requests of buyers, where the specified data include: the name of goods or service and the code of goods or service in conformity with the Global Classification of Branches of Economy, Goods and Services, the quantity of goods or the volume of service, main characteristics of goods or service, in conformity with the database of the Global Classification of Branches of Economy, Goods and Services, the desired price of goods or service, desired quality standards of goods or service, the country of location of producer, and the additional information about goods or service, and where all abovementioned data are recorded in strictly certain places of the database; and (3) inserting into the same record of the database of information about requests of buyers a name of a legal entity of the buyer and a country of location of the buyer from the database of open information about legal entities; g) searching of trade partners by buyers in the database of structured information about proposed goods and services by means of the system of global electronic trade in the Internet, where the searching comprises a combination of steps: (1) filling an application form with request of a buyer, where the application form includes a name of goods or service and a code of goods or service in conformity with the Global Classification of Branches of Economy, Goods and Services; (2) searching the goods or service in the database of information about proposed goods and services on the basis of the code of the Global Classification of Branches of Economy, Goods and Services, where the searching is uniquely defined, because codes of the same goods or services coincide both in the request of the buyer, and in the database of information about proposed goods and services; (3) forming of a list of results of search of buyer, wherein the list of results of search of buyer has the same structure, as the database of information about proposed goods and services and wherein the list of results of search of buyer includes for every goods or service: a name of goods or service, a price of goods or service, quality standards of goods or service, main characteristics of goods or service, a name of a legal entity of a seller, a quantity of goods or a volume of service, an additional information about goods or service, and a country of location of a seller; and wherein the list of results of search of buyer is cached on a server side; and (4) completion of searching, if the received result satisfies the buyer; h) sorting of data by buyers from the list of results of search of buyer, where the sorting comprises a combination of steps: (1) choice of a criterion of sorting of data from the list of results of search of buyer by a buyer, where criterions of sorting include: a price of goods or service, quality standards of goods or service, main characteristics of goods or service, names of legal entities of sellers, a quantity of goods or a volume of service, and a country of location of a seller; (2) sorting of data from the list of results of search of buyer by the system of global electronic trade in the Internet in accordance with the chosen criterion of sorting; and (3) getting a list of results of sorting, which has the same size that the list of results of search of buyer; i) selecting of trade partners by buyers from the list of results of search of buyer with help of an interactive or an automatic modes of selecting of data, where (a) the selecting with help of the interactive mode of selecting of data comprises a combination of steps: (1) choice of a first criterion for realisation of selecting of data from the list of results of search of buyer by a buyer, where criterions of selecting include: a price of goods or service, quality standards of goods or service, main characteristics of goods or service, a name of a legal entity of a seller, a quantity of goods or a volume of service, and a country of location of a seller; (2) selecting of data from the list of results of search of buyer on the basis of the first criterion of selecting by the system of global electronic trade in the Internet and completion of selecting of trade partners, if obtained result satisfies the buyer; (3) choice by the buyer of a second criterion for realisation of selecting of data from the list of results of selecting, received on the previous step, if obtained result does not satisfy the buyer; (4) selecting of data from the list of results of selecting, received on the previous step, on the basis of the second criterion of selecting by the system of global electronic trade in the Internet and completion of selecting of trade partners, if a received result satisfies the buyer, and so on to a last criterion of selecting; (5) analysis of results of selecting; and (6) forming a list of possible trade partners, wherein the list of possible trade partners is smaller than the list of results of search of buyer; (b) and where the selecting with help of the automatic mode of selecting of data comprises a combination of steps: (1) choice of criterions for realisation of selecting of data from the list of results of search of buyer by a buyer, where criterions of selecting include: a price of goods or service, quality standards of goods or service, main characteristics of goods or service, a name of a legal entity of a seller, a quantity of goods or a volume of service, and a country of location of a seller; (2) definition of priorities of criterions of selecting by the buyer; (3) selecting of data from the list of results of search of buyer by the system of global electronic trade in the Internet on the basis of priorities of criterions of selecting, including at a beginning selecting on the basis of criterion, having a first priority, then selecting of data from received result on the basis of criterion, having a second priority, and so on to latest from chosen criterions; (4) analysis of results of selecting; and (5) forming a list of possible trade partners, where the list of possible trade partners is smaller than the list of results of search of buyer; j) searching of trade partners by sellers in the database of structured information about requests of buyers by means of the system of global electronic trade in the Internet, where the searching comprises a combination of steps: (1) filling an application form with request of a seller, where the application form includes a name of goods or service and a code of goods or service in conformity with the Global Classification of Branches of Economy, Goods and Services; (2) searching the goods or service in the database of information about requests of buyers on the basis of the code of the Global Classification of Branches of Economy, Goods and Services, where the searching is uniquely defined, because codes of the same goods or services coincide both in the request of the seller, and in the database of information about requests of buyers; (3) forming of a list of results of search of seller, wherein the list of results of search of seller has the same structure, as the database of information about requests of buyers and wherein the list of results of search of seller includes for every goods or service: a name of goods or service, a quantity of goods or a volume of service, a price of goods or service, quality standards of goods or service, main characteristics of goods or service, a name of a legal entity of a buyer, an additional information about goods or service, and a country of location of a buyer; and wherein the list of results of search of seller is cached on a server side; and (4) completion of searching, if the received result satisfies the seller; k) sorting of data by sellers from the list of results of search of seller, where the sorting comprises a combination of steps: (1) choice of a criterion of sorting of data from the list of results of search of seller by a seller, where criterions of sorting include: a quantity of goods or a volume of service, a price of goods or service, quality standards of goods or service, main characteristics of goods or service, a country of location of a buyer, and names of legal entities of buyers; (2) sorting of data from the list of results of search of seller by the system of global electronic trade in the Internet in accordance with the chosen criterion of sorting; and (3) getting a list of results of sorting, which has the same size that the list of results of search of seller; l) selecting of trade partners by sellers from the list of results of search of seller with help of an interactive or an automatic modes of selecting of data, where (a) the selecting with a help of the interactive mode of selecting of data comprises a combination of steps: (1) choice of a first criterion for realisation of selecting of data from the list of results of search of seller by a seller, where criterions of selecting include: a quantity of goods or a volume of service, a price of goods or service, quality standards of goods or service, main characteristics of goods or service, a country of location of a buyer, and a name of a legal entity of a buyer; (2) selecting of data from the list of results of search of seller on the basis of the first criterion of selecting by the system of global electronic trade in the Internet and completion of selecting of trade partners, if obtained result satisfies the seller; (3) choice by the seller of a second criterion for realisation of selecting of data from the list of results of selecting, received on the previous step, if obtained result does not satisfy the seller; (4) selecting of data from the list of results of selecting, received on the previous step, on the basis of the second criterion of selecting by the system of global electronic trade in the Internet and completion of selecting of trade partners, if a received result satisfies the seller, and so on to a last criterion of selecting; (5) analysis of results of selecting; and (6) forming a list of possible trade partners, wherein the list of possible trade partners is smaller than the list of results of search of seller; (b) and where the selecting with help of the automatic mode of selecting of data comprises a combination of steps: (1) choice of criterions for realisation of selecting of data from the list of results of search of seller by a seller, where criterions of selecting include: a quantity of goods or a volume of service, a price of goods or service, quality standards of goods or service, main characteristics of goods or service, a country of location of a buyer, and a name of a legal entity of a buyer; (2) definition of priorities of criterions of selecting by the seller; (3) selecting of data from the list of results of search of seller by the system of global electronic trade in the Internet on the basis of priorities of criterions of selecting, including at the beginning selecting on the basis of criterion, having a first priority, then selecting of data from received result on the basis of criterion, having a second priority, and so on to latest from chosen criterions; (4) analysis of results of selecting; and (5) forming of a list of possible trade partners, wherein the list of possible trade partners is smaller than the list of results of search of seller; m) holding of tenders by buyers in a frame of the system of global electronic trade in the Internet, wherein a tender, which is holding by a buyer, is a competition, which the buyer holds among sellers of goods or services, which the buyer wishes to buy, and where the holding of the tender by the buyer comprises a combination of steps: (1) filling an application form about an announcement of the tender, where the buyer, as an organizer of the tender, determines parameters of a competition, namely: a name of goods or service, which the buyer want to buy, and a code of goods or service in conformity with the Global Classification of Branches of Economy, Goods and Services, a quantity of goods or a volume of service, quality standards of goods or service, main characteristics of goods or service, a desired price of goods or service, a time frame for accepting documents for the tender, and a time, when a result of the tender will be declared; (2) searching of potential participants of the tender by the system of global electronic trade in the Internet in the database of the structured information about proposed goods and services on the basis of the name of goods or service, which the buyer want to buy, and on the basis of code of this goods or service in conformity with the Global Classification of Branches of Economy, Goods and Services; (3) creating of a list of results of search of potential participants of the tender by the system of global electronic trade in the Internet; (4) automatic selecting of data from the list of results of search of potential participants of the tender by the system of global electronic trade in the Internet and creating of a list of results of selecting of potential participants of the tender; (5) notification of the potential participants about the tender, which is carried out either through automatic sending of messages about the tender to potential participants on the basis of the list of results of selecting of potential participants of the tender or through automatic sending of messages about the tender to sellers, selected by the organizer of the tender; (6) sending of required data to the organizer of the tender by participants of the tender; (7) analyzing of received documents and taking a decision by the organizer of the tender; (8) declaration of a result of the tender by means of publishing this result on a special page of the system of global electronic trade in the Internet, what are available for participants of competition only; and (9) conclusion of a contract in the frame of the system of global electronic trade in the Internet between the organizer of the tender and a winner of the competition; n) holding of tenders by sellers in a frame of the system of global electronic trade in the Internet, wherein a tender, which is holding by a seller, is an auction, which the seller bids in order to sell goods or services, and where the holding of the tender by the seller comprises a combination of steps: (1) filling an application form for an announcement of the tender, where the seller, as an organizer of the tender, declares goods or a party of goods for sale, an initial price, a time frame for an auction and other parameters for holding the tender; (2) searching of potential participants of the tender by the system of global electronic trade in the Internet in the database of the structured information about requests of buyers on the basis of name of goods or service, proposed for sale, and on the basis of code of this goods or service in conformity with the Global Classification of Branches of Economy, Goods and Services; (3) creating of a list of results of search of potential participants of the tender by the system of global electronic trade in the Internet; (4) automatic selecting of data from the list of results of search of potential participants of the tender by the system of global electronic trade in the Internet and creating of a list of results of selecting of potential participants of the tender; (5) notification of the potential participants about the tender, carried out either through automatic sending of messages about the tender to potential participants on the basis of the list of results of selecting of potential participants of the tender, or by automatic sending of messages about the tender to buyers, selected by the organizer of the tender; (6) familiarization with characteristics of the offered goods and other conditions of the auction of buyers and a confirmation of their participation in the auction; (7) holding an on-line auction by the seller for participants of the auction; and (8) conclusion of a contract in the frame of the system of global electronic trade in the Internet between the organizer of the tender and a winner of the auction; o) conducting of transactions between trade partners in a frame of the system of global electronic trade in the Internet, wherein conducting of transactions between trade partners comprises a combination of steps: (1) conducting negotiations; (2) concluding of a contract in case of successful negotiation in the frame of the system of global electronic trade in the Internet or out of it, wherein concluding of the contract in case of successful negotiation in the frame of the system of global electronic trade in the Internet comprises a combination of steps: choosing of a standard form of the contract, proposed by the system of global electronic trade in the Internet; automatic filling by the system of global electronic trade in the Internet of main data about trade partners in the form of the contract from the database of confidential information about legal entities; filling main requisites into the contract according to International legal regulations, where the main requisites at least include: a name of goods or services, and a quantity of sold goods or services; filling additional paragraphs into the contract, if the trade partners so desire; signing the contract with an electronic signature; setting of an electronic seal in the contract for users, having seal according to articles of associations; verifying of codes of the electronic signature and the seal; automatic setting of scanned signatures and seals in a specified location of the contract; automatic registration of the contract and storing the contract in the database of confidential information about legal entities without a possibility to insert any one-sided changes to the contract; automatic recording of information about the contract, concluded in the frame of the system of global electronic trade in the Internet, for every participant of transaction in the database of open information about legal entities; making the contract accessible for every party; modification of the contract on mutual assent of parties by means of filling of a special form with electronic signatures in case of necessity; and cancellation of the contract at mutual assent of parties by means of filling of a special form with electronic signatures in case of necessity; (3) conducting of a Controlled Advanced Payment in case of concluding of a contract in the frame of the system of global electronic trade in the Internet, comprising a combination of steps: money transfer to an account of the system of global electronic trade in the Internet by a buyer; automatic sending a message to a seller about the money transfer from the buyer; delivery of goods or a performance of services according to the contract by the seller; automatic money transfer by the system of global electronic trade in the Internet to an account of the seller, according to terms, specified in the contract, if the buyer sends no messages to the system; filling a special form by the buyer with his electronic signature on this form, if the buyer does not get goods or services within the time frame, specified in the contract; automatic money transfer by the system of global electronic trade in the Internet back to an account of the buyer after reception by the system of global electronic trade in the Internet of the abovementioned form from the buyer; filling a special form by the buyer with his electronic signature on this form, if delivered goods or performed services did not correspond to terms of the contract, and the buyer confirms, what he has sent back goods to the seller or did not accept the services; automatic money transfer back to the account of the buyer after reception by the system of global electronic trade in the Internet of the abovementioned form from the buyer; and provision of abovementioned forms to users in a case of court proceeding; and (4) reacting of the system of global electronic trade in the Internet to possible conflict situations during realization of contracts, concluded in the frame of the system of global electronic trade in the Internet, where this reacting comprises a combination of steps: filling a special application form by an offended party with an electronic signature in case of a breach of a contract by another party, which must be confirmed by a court decision; automatic making of a new record in a “black-list” of the system of global electronic trade in the Internet, containing information on all users, breaching their contracts; automatic annulment of a previously made record about the contract, concluded in the frame of the system of global electronic trade in the Internet; filling a special application form by an offended party with an electronic signature in case of a non-fulfillment of any paragraphs of a contract by another party, what must be confirmed by a court decision; and automatic making of a new record about non-fulfillment of any paragraphs of the contract by this party in a section “Comments of partners” of the system of global electronic trade in the Internet; p) conducting of post-transaction procedures, which at least comprise: (1) a delivery of goods to a buyer by means of transport of a seller or by means of a transport company, and (2) a payment for goods or services by a buyer at expense of own means or at expense of a credit; q) performing of additional services by the system of global electronic trade in the Internet, comprising at least: (1) a detailed help for working in the system of global electronic trade in the Internet with a number of examples; (2) juridical services dealing with problems of electronic trade; (3) an analysis and a prognosis of a market, if it is required for companies, other organizations and individuals; (4) an insurance of cargos; (5) an insurance of payments; (6) an analysis of a global market; (7) an analysis of a market of some goods or services; (8) a publication of a magazine with an analysis of the global electronic trade; and (9) “Hot-line” with consultation about work of the system of global electronic trade in the Internet; and r) protecting of information in the system of global electronic trade in the Internet, comprising a combination of steps: (1) sending a password generator to a user together with a user password for entrance into the system of global electronic trade in the Internet during process of the registration; (2) requiring the user password for entrance into the system of global electronic trade in the Internet for registered users; (3) generating a new password by the password generator of a computer of the user for every new entrance of the user into the system of global electronic trade in the Internet on the basis of a previous password, stored on a hard disk of a computer of the user, of a date and a time of a beginning of the generation process of the new password and an IP address of user's computer; (4) sending the new password together with the exact time, when the new password was generated, from the computer of the user to the host server of the system of global electronic trade in the Internet; (5) generating a new verification password of the host server of the system of global electronic trade in the Internet on the basis of a previous password, stored in a database of the host server, on the basis of a user's IP address, stored in the database of the host server, and on the basis of the time, when the new password was generated, which received from the user; (6) comparison of the new password, received from the user, and the new verification password, generated by the host server; (7) admitting the user into the system of global electronic trade in the Internet upon of the new password, received from the user, and of the new verification password, if these passwords match; (8) blocking the user's domain upon of the new password, received from the user, and of the new verification password, if these passwords not match; (9) making a record into a security database of the host server and into the hard disk of the computer of the user with last passwords of a successful entrance into the system of global electronic trade in the Internet; and (10) making a record into the security database of the host server of the date and time of the generation of the new password upon successful entrance into the system of global electronic trade in the Internet.