NGgrid.sty

%%%
%%% Copyright Newgen Imaging systems pvt ltd.
%%%

\NeedsTeXFormat{LaTeX2e}
\ProvidesPackage{NGgrid}[2003/07/18 v1.0 grid for text area]

\RequirePackage{graphics,color,ifthen,lenval}

\newboolean{Gd@on}
\setboolean{Gd@on}{false}
\newcommand{\grid}{\setboolean{Gd@on}{true}}

\newlength{\Gd@topoffset} %%usually value of \headsep + 0.25pt(rule height) + \headheight

\definecolor{tint}{gray}{0.7}

\newcommand{\Gd@draw}[1]{%
     \setlength{\Gd@topoffset}{#1}%
     \addtolength{\Gd@topoffset}{\textheight}%
     \addtolength{\Gd@topoffset}{0.25pt}%
     \lenval{\Gd@topoffset}%
     \ifthenelse{\boolean{Gd@on}}%
        {\begin{picture}(0,0)(0,\LV@value)%
              \put(0,0){\textcolor{tint}{\rule{0.25pt}{\textheight}}}%  left
              \lenval{\textwidth}%
              \put(\LV@value,0){\textcolor{tint}{\rule{0.25pt}{\textheight}}}%  right
              \addtolength{\Gd@topoffset}{-#1}%
              \addtolength{\Gd@topoffset}{-0.25pt}
              \lenval{\Gd@topoffset}%
              \put(0,\LV@value){\textcolor{tint}{\rule{\textwidth}{0.25pt}}}%  top
              \put(0,0){\textcolor{tint}{\rule{\textwidth}{0.25pt}}}%  bottom
         \end{picture}}%
        {\relax}%
    }