I am unable to get the number or currency formatters working. Here is code:
script:
colModel :[
…
{name:”price”, formatter:'currency', index:”price”, width:80, align:'right'},
…
],

grid.locale-en.js is included:
$.jgrid.formatter = {

…
currency : {decimalSeparator:”.”, thousandsSeparator: “,”, decimalPlaces: 0, prefix: “$”, suffix:””, defaulValue: 0},
…
}