function GetCheckedProductInformation(spanId)
{               
   var checkboxes = $("input:checked[id*='chkSelect']").parent().parent().find("span[id*='" + spanId + "']");
  
   var productInfos = new Array(); 
   for (var i = 0; i < checkboxes.length; i++)
   {
         productInfos[i] = checkboxes[i].innerHTML;
   }
    
   return productInfos;             
}

function GetProductNumbers()
{
    return GetCheckedProductInformation('lblPartNumber');
}

function GetProductQuantities() {

   return  GetCheckedProductInformation('lblMinSellQty');
}