MaskedEdit "backspace" and delete problem with safari and chrome -- here's the fix!

the fix is easy. in the current source code of MaskedEditBehavior.js about line 890 you have this:

if (Sys.Browser.agent == Sys.Browser.InternetExplorer || evt.type == "keypress")  
    {
        if (scanCode == 8) // BackSpace

the code should be

if (Sys.Browser.agent == Sys.Browser.InternetExplorer || evt.type == "keydown")  
    {
        if (scanCode == 8) // BackSpace
     ...