function sss(e) {
var rows = grid.getSelecteds();
if (rows.length > 0) {
var total = 0;
var ids = [];
for (var i = 0, l = rows.length; i < l; i++) {
var r = rows[i];
ids.push(r.ID);
var t = r.salary;
if (isNaN(t)) continue;
total += t;
}
alert(t);
}
}