passing int values to asp:dropdownlist using javascript at page l

[deepak kumar]

i want to populate dropdownlist through integer values(0...up to 29) by
javascript at client side
i m confuse ........my code is
var newOptionElement = document.createElement("<option value='" + your
Value+ "'>" + yourtext + "</option>");
document.Form1.ddlShipperState.add(newOptionElement);

but error is OBJECT EXPECTED ,,,
can any true friend give me complete clean code