Problem with dancing fonts

[overlorder2]

Hi dear facepunch community! I need a little help. The problem is than text i've created is dancing (see screenshots).

Here is code:

surface.CreateFont("New_font",   {font = "DermaDefaultBold",
                                size = 21,
                                weight = 700,
				antialias = f,
				blursize = 0,
				scanlines = 0,
})

local function ShadowedText(text, font, x, y, color, xalign, yalign)
   shadowcolor = colormode.shadowcolor
   draw.SimpleText(text, font, x+2, y+2, shadowcolor, xalign, yalign)
   draw.SimpleText(text, font, x, y, color, xalign, yalign)
end

text = "1088"
ShadowedText(text, "New_font", ScrW() / 2 - x / 2  + x/2, 30 + y/1.5 + 12, Color(255,255,255,255), TEXT_ALIGN_CENTER, TEXT_ALIGN_CENTER)

[IMG]http://i57.tinypic.com/nysrqw.png[/IMG]