Azzad Asset Management has announced the launch of an online tool intended to help American Muslims observe Halal investing guidelines. Using input provided by shareholders of the Azzad Mutual Funds, an online Purification Calculator will provide a user-specific dollar amount that represents unintentional earnings that were potentially derived from religiously impermissible sources. Purification totals are calculated on a per share basis using Azzad's methodology for calculating unethical income. Azzad advises shareholders to give the indicated amounts to the charity or charities of their choice in order to avoid profiting from any activities deemed potentially harmful to society.