How to draw a grid in canvas with alpha channel based on the width of the grid line?

How to draw a grid in canvas with alpha channel based on the width of the
grid line?

References

Reference NO 1

http://stackoverflow.com/questions/13585515/how-to-draw-a-grid-in-canvas-with-alpha-channel-based-on-the-width-of-the-grid-l

Reference NO 2

http://stackoverflow.com/questions/15565612/adding-a-grid-on-canvas-bring-some-lag-optimisations

Reference NO 3

http://stackoverflow.com/questions/17642229/using-ember-to-write-a-canvas-based-game

Reference NO 4

http://stackoverflow.com/questions/13996250/graphics-on-canvas-not-being-cleared-properly

Reference NO 5

http://www.jqplot.com/docs/files/jqplot-core-js.html

Reference NO 6

http://www.cstestsites.com/wnm_275/demo_site_v4/demo_10.html

Reference NO 7

http://tutorials.jenkov.com/html5-canvas/pixels.html

Reference NO 8

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