In my wordpress theme I use the plugin TDO mini forms plugin for users to submit posts. The tdo form is in every archives page. In my tdo form people write their content in the text box, then there is a drop down menu box where they choose the category where it will be displayed. I have alot of categories and it can be frustrating for people to search for a certain category which they are currently viewing. I want someone who can customize this tdo form so the category the person is currently viewing is the default category. For example if someone is viewing Category A then in the tdo form, the category drop down box will be automatically set to category A. The same goes for category B, C and so on. Please note that I have subcategories so if the post is in a subcategory, the main categories shold be chosen as well.