Abstract: This invention is concerned with a method and system for indicating selective parameters in a document, comprising: defining parameters for affecting the document; defining a function which includes the defined parameters as variables; providing a background generator receiving the function result as an input, for accordingly outputting a background relative to the input; and checking the document and substituting actual values reflecting the parameters to the function variables, and activating the function to obtain and provide results to the background generator, to produce and apply a specific background to the document, and the system produces a background to a document, and includes an electronic document with associated parameters; parameters retrieving and value generator for examining predefined parameters, and providing values to variables of a predefined function; a predefined function including variables, for producing an output result, which is provided to a background generator; and a background