If you want to employ this process on your own, here are some steps which should be followed while conversion of Psd to HTML/XHTML.

First step involves the understanding of design look which has various inbuilt layers. Designers check layers with Photoshop and thus achieve the desired look and procedure. It is necessary for you to learn each layer and confirm the divergence between the layers for accomplishing the preferred method.

For example one layer may contain tool tips while other may have difference in images. So you have to distinguish the layer compositions while converting Psd to CSS or XHTML.

In further steps you have to differentiate base designs in headers, body contents and footers. Photoshop help tab can guide you through this step. You can make your own Guides as well.

In the next step you have to decide which type of conversion you are going to make, whether it is psd to xhtml or CSS or HTML. Now start coding with a text editor. Coding involves various commands in their right order and exact mark up.

It required so much effort in Photoshop as well as in coding. It needs a professional approach to sort out the complex coding problems. You should be proficient in markup languages as well as in Photoshop.