toHtml (Command "image3" y) = "<img width=200px src='"++(toHtml y)++"'/>"
toHtml (Command "image4" y) = "<center><img width=550px src='"++(toHtml y)++"'/></center>"
toHtml (Command "warn" y) = "\n<div class=warn>\n<table border=0 cellpadding=5px>\n"
toHtml (Command "image3" y) = "<img width=200px src='"++(toHtml y)++"'/>"
toHtml (Command "image4" y) = "<center><img width=550px src='"++(toHtml y)++"'/></center>"
toHtml (Command "warn" y) = "\n<div class=warn>\n<table border=0 cellpadding=5px>\n"