The method getcolno returns the column index of a grid cell. The argument is a grid element.
var pggrid = new jsgrid(); pggrid.init({ id:"wrp", rows:5, columns:12, width:25, height:20, gutter:1, backgroundColor: "#7fffd4" }); var cols = pggrid.getcolumns(4); var colno = pggrid.getcolno(cols[2]); // return 4