Save dom that has manipulated, and then load it after [closed]

I'm creating user interface that build a quotation for his customer. I want the my customer to be able to save the quotation .. and then be able to edit it whenever he wants and save changes, and can edit it again ..

It means all the DOM manipulation made to html should be saved anywhere (mysql?) and then when the customer want to edit it , he will load it from sql ?

Thank you in advance.