System and method of data transmission for computer networks utilizing HTTP
The present invention permits textual data to be exchanged between a Web page displayed in a standard Microsoft Web browser window and a server, utilizing a non-persistent HTTP connection. Traditionally, each time textual data is received to the displayed Web page a record is added to the history list. This is problematic as it clutters the history list, compromises the functionality of the browser “Back” and “Forward” buttons, and results in undesirable server operations to be executed. The present invention utilizes several methods for loading textual data to a displayed Web page, without adding a URL to the history list. In one aspect of the invention, a <xml> element is used to transmit a HTTP request for new data and receive the HTTP response. The present invention can be used to build a lightweight Web page that offers real-time data and interactivity.
1. A method for bringing new data to a Web page displayed in Microsoft Web browser window at a client device, the method comprising:
displaying, in Microsoft Web browser window of a client device, a Web page, wherein said Web page no longer has any active HTTP connections;
transmitting, to a server, an HTTP request; and
receiving, from said server, an HTTP response associated with said HTTP request,
wherein the transmitting and receiving actions do not utilize Web browser plug-in, Java Applet, or ActiveX technology, and do not add a Universal Resource Locator (URL) to said application's history list.
2. A method as defined in claim 1 , wherein information in said HTTP response is delivered to an HTML element of a Web page that is capable of loading a text file.
3. A method as defined in claim 2 , wherein information in said HTTP response is delivered to an HTML <script> element of a Web page.
4. A method as defined in claim 3 , wherein information in said HTTP response contains only one JavaScript instruction or line of JavaScript code.
5. A method as defined in claim 4 , wherein said JavaScript instruction automatically executes a JavaScript function defined in said Web page.
6. A method as defined in claim 2 , wherein information in said HTTP response is delivered to an HTML <iframe> element of a Web page.
7. A method as defined in claim 2 , wherein information in said HTTP response is delivered to an HTML <xml> element of a Web page.
8. A method as defined in claims 3 , 6 , or 7 , wherein said information from said HTTP response is displayed on said Web page.
9. A method as defined in claims 3 , 6 , or 7 , wherein said information from said HTTP response is processed by program code of a Web page.