As Sara3 indicates, your husband will probably be entitled to Contribution-Based JSA, which is not 'means tested' However it's important to note that it only lasts for 6 months. Thereafter some people are transferred to the means-tested Income-Based JSA but your working hours will exclude your husband from this.
http://www.direct.gov.uk/en/MoneyTaxAndBenefit s/BenefitsTaxCreditsAndOtherSupport/Employedor lookingforwork/DG_10018757
There's no provision, under the JSA system, for making additional payments because the claimant has children but, as Sara also suggests, you can probably get more through your tax credits.
Chris