i want to calculate the sum of the value in multi row variable set?
below is the script
function onSubmit() {
//Type appropriate comment here, and begin script below
var count = 0;
var mrvsData = g_form.getValue("abcd"); //replace with mrvs internal name
var mrvsDatastr = JSON.parse(mrvsData);
for (var i = 0; i < mrvsDatastr.length; i++) {
count = count + parseInt(mrvsDatastr[i].amt); //map your variable names
}
g_form.setValue("aa", count); //map variable name where you want to set
}
error = 
Dont know what i am doing wrong
