(function (tree) {
tree.Alpha = function (val) {
this.value = val;
}; tree.Alpha.prototype = {
toCSS: function () { return "alpha(opacity=" + (this.value.toCSS ? this.value.toCSS() : this.value) + ")"; }, eval: function (env) { if (this.value.eval) { this.value = this.value.eval(env) } return this; }
};
})(require('../tree'));