lol Check this out
http://dowdybrown.com/dbprod/rico-test7/php/demo-prefilled.phpthis uses the openrico.org libaray. Play with it and all the other examples. You can in real time, sort each column, hide and un-hide each column.
Examples 4 and 3 are some powerful stuff. I showed my boss this and I think she is in love. Ajax is highly powerful if used in the right way. Our challenge here at the census is Section 508.
But I have found an Ajax frame work that claims to be 100% acessable.
http://www.bindows.net/only snag is licenses are $495 to $695 a pop. There is a free trial evaluation version though.
The Rico libaray is great for data grids. I haven't yet messed with
http://script.aculo.us.I plan on installing cakePHP which has php/ajax development enviroments/libararies that make development much faster.