how to call javascript function with in a loop?

for (int i = 0; i < oDataSet.Tables[0].Rows.Count; i++)
{
     hdnLocation.Value = oDataSet.Tables[0].Rows[i][4].ToString();
     hdnrowIndex.Value = i.ToString();                             
     ScriptManager.RegisterStartupScript(this, this.GetType(), "alertScript", "findLocation()", true);                  
}