Basic Doubts

<i><b>Originally posted by : subramanian (subramanian@texworld.com)</b></i><br /><br />Question 1<br /><br />how does the browser validate a document against a standard namespace declaration?,<br />does the browser go to the specified url or not.?<br /><br />for example :<br />xmlns:html=http://www.w3.org/TR/WD-xsl<br /><br />Question 2<br /><br />if i type http://www.w3.org/TR/WD-xsl over the address bar of the browser nothing is available<br />on the page for the browser to validate.how does the browser understand the validations?<br /><br /><br />Question 3<br /><br />in such a case how can a browser validate a dtd <br />declared in some uri,?<br /><br /><br />Question 4<br /><br />by the by how to create a uri and have a dtd in that uri<br /><br />for example a dtd named good.dtd in some location<br /><br />http.qqq.com/testdtd/helpdtd<br /><br /><br />thanking u all.<br /><br />subramanian<br /><br />