HTML Navigation

The advantage of having a html navigation bar instead of image buttons is so that search engines can read this text and therefor become more acessesible by a search engines point of view but because iv put an image rollover for my navigation bar the seacrch engines wont be able to read it because its an image so i thought a way to cover my self would be to insert a simple html navigation at the bottom of each page on the footer.

Meta tags

Meta tags are keywords inserted into the (head) area of a web pages in html view where search engines use the information for ratting purposes.

Reference: http://searchenginewatch.com/article/2067564/How-To-Use-HTML-Meta-Tags