sets a font object (Silverlight)
var f = this.fontStyle, r = this.rawNode, fw = dojox.gfx.silverlight.fontweight, fo = dojox.gfx.silverlight.fonts, t = f.family.toLowerCase(); r.fontStyle = f.style == "italic" ? "Italic" : "Normal"; r.fontWeight = f.weight in fw ? fw[f.weight] : f.weight; r.fontSize = dojox.gfx.normalizedLength(f.size); r.fontFamily = t in fo ? fo[t] : f.family;