Setting up the Class

style1 {
        font-family: Arial;
        font-size: 16;
}

style2 {
        font-family: Georgia;
        font-size: 10;
}
We'll use this simple stylesheet as our example stylesheet. Here we
only have two styles, each with two properties: font-family and
font-size. Later on we'll add a few more styles and properties as
needed. 
Now we can turn to the class. Before we start writing
the class itself, we need to include a few custom String methods which
strip a string of any extra spaces (whitespace) before and after the
string. So to begin, open up a new blank document in your favorite text
editor (or code editor such as Dreamweaver), save it as
'Stylesheet.as', and copy the following code: 
// ------------------------------------------------------------- //
// Some String Methods for stripping white space //
// ------------------------------------------------------------- //

String.prototype.trimL = function () {
        for (var i = 0; i < this.length; i++) {
                if (this.charCodeAt (i) > 32) {
                        return this.substr (i, this.length);
                } // end if (this.charCodeAt (i) > 32)
        } // end looping through characters
        return this;
} // end String.trimL ()

String.prototype.trimR = function () {
        for (var i = this.length; i > 0; i--) {
                if (this.charCodeAt (i) > 32) {
                        return this.substring (0, i + 1);
                } // end if (this.charCodeAt (i) > 32)
        } // end looping through characters backwards
        return this;
} // end String.trimR ()

String.prototype.trimWhite = function() {
        this = this.trimL ();
        return this.trimR ();
} // end String.trimWhiteThoth ()

// End String Methods //
// ------------------------------------------------------------- //