[Greasemonkey] A possible cool app for GM

[Andy Elvey]

Hi all - I'm a first-timer here so hoping you'll be gentle ...  :-) 

  I've been mulling over what could be a very cool app for GM (and web 
pages in general) - a web-based spreadsheet, complete with formulas and 
filters at the top of columns.

  I've done some looking around and there are indeed several existing 
ones (using javascript as the language). 
 One or two have filters (although in a somewhat awkward way), but none 
of the open-source ones seem to yet feature formulas.  

  I couldn't do an app like this myself (I'm a SAS coder, and my js 
isn't great), but I thought I'd post several links that should be quite 
useful if anyone is keen to take this on. 

  A spreadsheet-formula parser using javascript -
  http://ewbi.blogs.com/develops/2004/12/excel_formula_p.html
  The above site is *amazing* - the guy there (Eric) really does some 
cool stuff - this is just one example. 

 The "OS3" javascript grid -
 http://os3grid.sourceforge.net/website/index.html
 One of the better js grids that I've found. 

 The next two links aren't directly relevant, but may spark an idea or 
two ...
 Another of Eric's projects - Convert Excel-XML to a much simpler XML 
layout
 http://ewbi.blogs.com/develops/2004/12/normalize_excel.html

 ... And the reverse - once you've played around with the simplified XML 
above, you can
   use this page to convert it back to Excel-XML
 http://ewbi.blogs.com/develops/2005/01/create_excels_s.html 
  
 I'm sure there would be someone who could make an ultra-cool-looking 
spreadsheet with GM - would be a great demo of what it can do.  Anyway, 
I'm looking to poke around with GM very soon - looks like a great tool!
   Bye for now ...
 - Andy