FRANK, Judge.

Norvell W. West, III, appellant/husband, appeals from the rulings of the circuit court in his divorce case. Appellant first assigns error to the trial court's ruling that a pending mandate of the Court of Appeals restricted or prevented its consideration of, and jurisdiction over, modifications of spousal support and child support. Appellant next argues the trial court erred when it found it had no authority to modify spousal support and child support because no formal order granting reinstatement of the case was entered. Finally, appellant contends the trial court abused its discretion when it voided all interlocutory orders without cause. For the reasons stated, we affirm in part and reverse in part.

BACKGROUND

On November 15, 2007, the Roanoke Circuit Court entered a final decree of divorce in this case. The case was appealed, and on December 16, 2008, this Court remanded the case to the circuit court to recalculate child support. On March 4, 2009, the Supreme Court of Virginia issued an order dismissing the petition for lack of jurisdiction.

During the pendency of the remand, both parties filed motions to modify the final order, based upon a change in circumstances. Speaking from the bench on December 15, 2009, the trial court terminated appellant's child support obligation, retroactive to November 1, 2009. On the same date, the trial court also established a child support obligation for appellant from November 2007 through December 2008. Those pronouncements were never reduced to writing. By order of May 27, 2010, the trial court suspended spousal support payments, effective May 1, 2010, until the case could be heard on the merits.1

On July 26, 2010, the presiding judge recused himself, and a new judge was appointed. On December 16, 2010, the judge held that the mandate from the Court of Appeals prohibited him from considering any issues not specifically contained in that mandate. The judge also indicated that he lacked jurisdiction because of the lack of an order reinstating the case to the active docket. Finally, the judge vacated all orders entered after the Court of Appeals remand, finding that they were entered without jurisdiction, or in the alternative, that they were interlocutory and subject to correction.

This appeal follows.

ANALYSIS

Appellant first contends the trial court erred in ruling that a pending mandate of this Court restricted its consideration of, and jurisdiction over, modifications to spousal support and child support pursuant to Code §§ 20-108 and 20-109. Essentially, appellant argues the trial court erred in ruling that the mandate2 of this Court in West v. West, 53 Va.App. 125, 669 S.E.2d 390 (2008), barred it from addressing modification of child and spousal support.

Powell v. Commonwealth, 267 Va. 107, 128, 590 S.E.2d 537, 550 (2004).

In Sprague, the issue before the United States Supreme Court was whether an earlier remand by that Court allowed the district court to award fees and costs. The district court ruled the mandate of the Supreme Court did not allow such an award. Sprague, 307 U.S. at 163, 59 S.Ct. at 778. Finding its earlier mandate did not bar the district court from an award of fees and costs, the Supreme Court reviewed the power of federal courts in equity suits to allow fees and costs. The Supreme Court considered whether such an award "was disposed of in the main litigation and therefore foreclosed by the mandate." Id. at 168, 59 S.Ct. at 781.

In that context, the Supreme Court concluded that the claim "was not directly in issue in the original proceedings by Sprague. It was neither before the Circuit Court of Appeals nor before this Court." Id. The Court opined:

Id. at 169, 59 S.Ct. at 781.

United States v. Bell, 5 F.3d 64 (4th Cir. 1993), also addressed the scope of a trial court's authority on remand. In an earlier opinion, the Fourth Circuit vacated Bell's sentence and remanded the case to the district court for re-sentencing within the guidelines. On remand, the district court vacated Bell's guilty plea and dismissed the indictment. In finding that the district court, on remand, had no authority to dismiss the indictment, the Fourth Circuit acknowledged that the Sprague doctrine as to the mandate of a higher court was one of the most firmly established legal precepts. The Court noted:

Bell, 5 F.3d at 66-67 (internal quotations and citations omitted).

Our decision in Hart v. Hart, 35 Va.App. 221, 544 S.E.2d 366 (2001), is instructive as to the authority of the trial court to decide issues beyond the scope of the remand. In the first appeal, Hart v. Hart, 27 Va.App. 46, 497 S.E.2d 496 (1998), we remanded the case to the trial court solely to reallocate the parties' responsibilities for maintenance costs for two easements. On remand, in addition to the maintenance costs, the trial court clarified the extent, width, and other parameters of the easements. On appeal, we concluded the trial court exceeded its authority in amending the description of the easements. We held:

Hart, 35 Va.App. at 231, 544 S.E.2d at 371.

There, the trial court exceeded the scope of the remand by revisiting an issue that had been decided in the final decree, i.e. the extent of the easement. That issue had not been appealed and was a final determination.

Thus, the "mandate rule" forecloses in the remand relitigation of matters decided expressly or impliedly by the appellate court and relitigation of matters addressed by the trial court, but not addressed on appeal.3 Issues in controversy that were not disposed of in the original decree are beyond the scope of the "mandate rule." See Sprague, 307 U.S. at 168, 59 S.Ct. at 780-81.

In Hart, the scope of the easement was disposed of in the trial court and not appealed, barring the trial court from relitigating that issue. In Sprague, the assessment of fees and costs was not part of the Supreme Court's mandate and was therefore properly considered by the district court.

In the instant case, on December 16, 2008, this Court affirmed the trial court's ruling on spousal support. We then found the trial court erred in not using the father's current income in computing child support. We concluded, "[a]ccordingly, we reverse the trial court's award of $200 monthly in child support to mother and remand for recalculation using the parties' respective incomes at the time of the final decree."

Appellant's motion to modify child support, filed September 24, 2009, alleged that 1) the eldest daughter had become emancipated; 2) the youngest child refused to live with mother; and 3) mother's financial situation had improved significantly. Mother's motion to modify spousal and child support, filed February 7, 2008, alleged that appellant had had a significant increase in income.

While child support was the subject of the remand, neither party on remand asked the trial court to relitigate the original amount of child or spousal support. Each claimed a change of circumstances that occurred after the final decree. The "mandate rule" does not apply to a modification of child and spousal support, when the change of circumstances did not exist at the time of the order initially appealed, nor was the subject of the order appealed. Neither party in this case asked to relitigate the same issue originally before the trial court, nor any issue subject to the mandate.

Our decision in Rowe v. Rowe, 33 Va.App. 250, 532 S.E.2d 908 (2000), underscores that the "law of the case" doctrine does not apply to a change in circumstances occurring after the judgment appealed. "Where material facts have changed between the first appeal and the second, the law of the case doctrine is inapplicable." Id. at 266, 532 S.E.2d at 916.

We therefore conclude the trial court erred in ruling it had no jurisdiction to hear the motions for modification of child and spousal support.

Appellant next argues the trial court erred when it found it had no authority to modify spousal support and child support, because no formal order granting reinstatement of the case was entered.

However we are precluded from considering this argument by Rule 5A:18, which states that "[n]o ruling of the trial court ... will be considered as a basis for reversal unless an objection was stated with reasonable certainty at the time of the ruling, except for good cause shown or to enable the Court of Appeals to attain the ends of justice."

Appellant failed to object to the trial court's ruling regarding reinstatement of the case to the active docket. He cannot now assign error to the trial court's action.

This argument is further barred by Rule 5A:20(c), which requires the appellant's opening brief to contain "[a] statement of the assignments of error with a clear and exact reference to the page(s) of the transcript, written statement, record, or appendix where each assignment of error was preserved in the trial court." Appellant cites pages 45, 95, 112, and 113 of the appendix to show that he preserved this argument. We have reviewed those pages and fail to see where appellant preserved his argument. Further, it is not the function of this Court to "search the record for error in order to interpret the appellant's contention and correct deficiencies in a brief." Buchanan v. Buchanan, 14 Va.App. 53, 56, 415 S.E.2d 237, 239 (1992).

We therefore decline to address this issue.

Appellant next contends the trial court erred when it vacated all interlocutory orders without cause.4 This argument presupposes the trial court needs to show cause for its actions. In vacating these orders sua sponte, the trial court, in its order of January 12, 2011, stated:

We will only address the trial court's alternative ruling.

In its rationale for vacating the interlocutory orders, the trial court cited Freezer v. Miller, 163 Va. 180, 197, 176 S.E. 159, 165 (1934). In Freezer, the Supreme Court of Virginia stated that "an interlocutory judgment or decree made in the progress of a cause, is always under the control of the court until the final decision of the suit, and it may be modified or rescinded, upon sufficient grounds shown, at any time before final judgment." Id.

Appellant argues that Freezer was limited by the Supreme Court of Virginia several months after it was decided, by Kirn v. Bembury, 163 Va. 891, 178 S.E. 53 (1935). In Kirn, the trial court set aside the jury's verdict as being inadequate and impaneled a jury to ascertain the proper damages. The Supreme Court of Virginia characterized the jury's verdict as interlocutory and established criteria to determine whether the motion to vacate would be granted. In this context, the Supreme Court of Virginia held: "Usually, such motions are based upon error apparent on the face of the record or for the purpose of introducing after discovered evidence." Id. at 901, 178 S.E. at 56. The law, however, is quite different when the interlocutory order is a temporary determination of support, custody or visitation.

In a domestic relations context, we held in Pinkard v. Pinkard, 12 Va.App. 848, 407 S.E.2d 339 (1991), that "the matter of pendente lite support remains within the control of the court and the court can change its mind while the matter is still pending before it." Id. at 853, 407 S.E.2d at 342 (citing Freezer, 163 Va. at 197 n. 2, 176 S.E. at 165 n. 2); see also Robbins v. Robbins, 48 Va.App. 466, 474, 632 S.E.2d 615, 619 (2006). By its very nature, a pendente lite decree is temporary in nature and does not permanently resolve support issues. We conclude from the plain language of Pinkard that the court need not express any basis for its action regarding the interlocutory orders. Thus, we conclude that Kirn does not apply to the facts in this case.

We conclude the trial court acted within its sound discretion when it vacated the interlocutory orders. Under Pinkard, it need not express any basis for vacating the interlocutory orders. All of the vacated orders were either procedural or temporary in nature, and did not permanently determine any of the issues raised.

Finally, appellee asks for an award of her attorney's fees and costs associated with this appeal, arguing that appellant's appeal is frivolous. We disagree. As we are reversing this judgment in part, we cannot say that appellant's appeal is entirely without merit. See generally Miller v. Cox, 44 Va.App. 674, 688, 607 S.E.2d 126, 133 (2005). We therefore decline to award appellate attorney's fees.

CONCLUSION

The trial court erred in holding that it lacked jurisdiction to consider the parties' motions to modify spousal and child support based on a change in circumstances. We will remand the case to the trial court to consider whether there are current changes in condition and recalculate child and spousal support if warranted. The trial court did not abuse its discretion when it found the interlocutory orders to be void, and we find no error. We decline to award appellate attorney's fees.

Affirmed in part, reversed in part, and remanded.