Dame Barbara Windsor's devastated husband Scott Mitchell says he is "completely overwhelmed" after fans raised £100,000 in her honour within days. A fundraising page for the late star saw the donations pour in and six figures was quickly collected.The total is already heading for £110,000 and every penny is heading to Alzheimer's Research UK.The soap legend died on December 10 aged 83 after a brave battle with Alzheimer's disease.