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