psk.getStackTrace = (function () {

    var mode;
    try {(0)()} catch (e) {
        mode = e.stack ? 'Firefox' : window.opera ? 'Opera' : 'Other';
    }

    switch (mode) {
        case 'Firefox' : return function () {
            try {(0)()} catch (e) {
                return e.stack.replace(/^.*?\n/,'').
                               replace(/(?:\n@:0)?\s+$/m,'').
                               replace(/^\(/gm,'{anonymous}(').
                               split("\n");
            }
        };

        case 'Opera' : return function () {
            try {(0)()} catch (e) {
                var lines = e.message.split("\n"),
                    ANON = '{anonymous}',
                    lineRE = /Line\s+(\d+).*?in\s+(http\S+)(?:.*?in\s+function\s+(\S+))?/i,
                    i,j,len;

                for (i=4,j=0,len=lines.length; i<len; i+=2) {
                    if (lineRE.test(lines[i])) {
                        lines[j++] = (RegExp.$3 ?
                            RegExp.$3 + '()@' + RegExp.$2 + RegExp.$1 :
                            ANON + RegExp.$2 + ':' + RegExp.$1) +
                            ' -- ' + lines[i+1].replace(/^\s+/,'');
                    }
                }

                lines.splice(j,lines.length-j);
                return lines;
            }
        };

        default : return function () {
            var curr  = arguments.callee.caller,
                FUNC  = 'function', ANON = "{anonymous}",
                fnRE  = /function\s*([\w\-$]+)?\s*\(/i,
                stack = [],j=0,
                fn,args,i,cnt=0;

            while (curr && curr != curr.caller && cnt++ < 20) {
                fn    = fnRE.test(curr.toString()) ? RegExp.$1 || ANON : ANON;
                args  = stack.slice.call(curr.arguments);
                i     = args.length;

                while (i-- > 0) {
                    switch (typeof args[i]) {
                        case 'string'  : args[i] = '"'+args[i].replace(/"/g,'\\"')+'"'; break;
                        case 'function': args[i] = FUNC; break;
                    }
                }

                stack[j++] = fn + '(' + args.join() + ')';
                curr = curr.caller;
            }

            return stack;
        };
    }

})();