Adding the following lines to my page

        $("#cboxWrapper a.close").live(function () {
            // any code
        });

causes the following error

(types || "").split is not a function
[Break On This Error] types = (types || "").split(" "); 

This is after the successful addition of other live events immediately preceding these lines

On further investigation, firebug tells me that types is a function, not a string.

I can email a copy of the entire page if needed (NB the name of the jQuery file included is 1.4.4-min, but the code is 1.5 - just haven't got round to renaming yet)