1.from documentations: The <!DOCTYPE> declaration must be the very first thing in HTML document, before the <html> tag. The <!DOCTYPE> declaration is not an HTML tag; it is an instruction to the web browser about what version of HTML the page is written in. In HTML 4.01, the <!DOCTYPE> declaration refers to a DTD, because HTML 4.01 was based on SGML. The DTD specifies the rules for the markup language, so that the browsers render the content correctly. HTML5 is not based on SGML, and therefore does not require a reference to a DTD. Then must Always add the <!DOCTYPE> declaration to HTML documents, so that the browser knows what type of document to expect. 2.the html file in the zip you sent me : i understand anything ! visibly there is nothing when clicking (keypress event) on test link on my firefox.(you made a div Michel with display="none" (invisible) what can be the result ?where is innerhtml ?
