Data Controls :: Gridview Footer Total Calculation Not Working In Master Page

this is my gridview  footer calculation script, this script is working good if the aspx page is independent , when i use the same script with my asp.net master page content page that script is not working  this is my script 

what changes i have to do for apply this script to be work in my master page content page in asp.net

function GrossTotal()
{
$("[id*=GridView1]input[type=text][id*=txtCalc]").keyup(function(e) {
var price = $(this).closest('tr').find("input[type=text][id*=txtCalcPrice]").val();
var quantity = $(e.target).closest('tr').find("input[type=text][id*=txtCalcQuantity]").val();
var total = parseInt(price) * parseInt(quantity);
$(e.target).closest('tr').find("[id*=lblGrossTotal]").text(total);
});
}