Safari updating select box with ajax - *black box* over new values

[ebremner]

when using safari and updating a select box with ajax, the new value appears with a black box across the new value. If I select the value then the blackbox goes away and I can see the value

BEFORE Ajax:

AFTER Ajax:

[iam_clint]

can i see the portion of the javascript where you add the item to the select box.

[ebremner]

function AddNewPrinter(){
    // Check to see if the default button was check
    if(document.update_form.default_printer_new.checked)
        var params = "add_new_printer_flag=1&new_selected_printer="+document.update_form.new_printer_list.value+"&lab_id="+document.update_form.lab_list.value+"&default_newprinter=on&printer_count="+document.update_form.printerCountHidden.value;
    else
        var params = "add_new_printer_flag=1&new_selected_printer="+document.update_form.new_printer_list.value+"&lab_id="+document.update_form.lab_list.value+"&default_newprinter=off&printer_count="+document.update_form.printerCountHidden.value;
 
    // Add printer based on variables above (default or not)
    new Ajax.Updater({success: 'ErrorMessage'}, './labs/',  {method: 'get', parameters: params, asynchronous: true});
 
    // Assign printer_count to current_printer_count
    var current_printer_count = document.update_form.printerCountHidden.value;
 
    // Check if first printer added
    if(current_printer_count == 0)
        // Create Select box of printers for lab
        UpdatePrinterList('Printers','new');
    else
        // Update select box of printers for lab
        UpdatePrinterList('printer_list','');
 
    // Erase the Add Another Printer
    EraseData('additionalPrinter');
 
    // Update printer_count
    ShowPrinterCount();
 
    // Check to see if this is the first printer added
    if(parseInt(current_printer_count) == 0)
        // Display Make Default button
        ShowMakeDefault('');
 
    // Check to see if this is not the first printer added
    if(current_printer_count > 0)
        // Make the delete printer button enabled
        document.update_form.delete_printer.disabled = false;
}