},
round : function(){
if("_rounding" in this) return this;
- var Roo.util.Math = Roo.util.Math, r = this.roundType, b = this._d, d, p, n, x;
+ var r = this.roundType, b = this._d, d, p, n, x;
for(this._rounding = true; this._f > 1 && !b[0]; --this._f, b.shift());
for(d = this._f, p = this.precision + d, n = b[p]; b.length > d && !b[b.length -1]; b.pop());
x = (this._s ? "-" : "") + (p - d ? "0." + this._zeroes([], p - d - 1).join("") : "") + 1;