1. A system for emulating a multitude of different user agents on a server-side, the system comprising: a processor-based emulator executed on a computer system and configured to: identify a Web-page on a Web-site, the Web-site having browser sniffing code; determine an acceptable user agent string for a first browser for receiving full content from the Web-site, the user agent string one of a plurality of user agent strings wherein a user agent string for a second browser does not receive full content for the Web-page; emulate the acceptable user agent by transmitting a HTTP request with the acceptable user agent string; retrieve a HTML document for the Web-page at a script server on the server-side; parse the HTML document for the Web-page at the script server on the server-side; build a Document Object Model of the Web-page at the script server on the server-side; identify a plurality of elements of the Document Object Model of the Webpage for manipulation at the script server on the server-side; manipulate the plurality of elements of the Document Object Model of the webpage to create a manipulated Document Object Model of the Web-page at the script server on the server-side, wherein the manipulated Document Object Model of the Web-page presents a full content of Web page to the second browser; serialize the manipulated Document Object Model of the Web-page at the script server on the server-side into an HTML document for a Web-page with a manipulated Document Object Model; transmit the HTML document for the Web-page with the manipulated Document Object Model to a Web-server; and transmit the HTML document for the Web-page with the manipulated Document Object Model to a client side using the second browser.