Create ASP + iframe viewer like W3school has

I am wanting to great a tutorial place on my website Just like W3school's has. If you visit their website they have a section where you can 'Try it Yourself' -> This will open up a new box which is 4 boxes; 1) Top header 2) Left hand box - a textarea used for coding (which is pulled in using an iframe i believe at first from the page previous, but can be edited to say anything it likes 3) Right box which displays the code that is placed in the left hand box 4) Footer I want someone to create this for me and place it on my website. Also a small walk through on what was done and how and how i can add to it will be needed as i will be making more pages of tutorials soon