MAC Address validation using StringRegExp

Code Snippet
function ValidateAddrMac(addrMac)
{
var addMacReg = "^[0-9A-F]{2}-[0-9A-F]{2}-[0-9A-F]{2}-[0-9A-F]{2}-[0-9A-F]{2}-[0-9A-F]{2}$";
var regex = new RegExp(addMacReg);
if (regex.test(addrMac))
{
alert("MAC Address OK")
}
else
{
alert("MAC Address KO")
}
}