как работает ajax наигация..
сам скрипт..
<script type="text/javascript">
/***********************************************
* Dynamic Ajax Content- © Dynamic Drive DHTML code library ([url]www.dynamicdrive.com[/url])
* This notice MUST stay intact for legal use
* Visit Dynamic Drive at [url]http://www.dynamicdrive.com/[/url] for full source code
***********************************************/
var loadedobjects=""
var rootdomain="http://"+window.location.hostname
function ajaxpage(url, containerid){
var page_request = false
if (window.XMLHttpRequest) // if Mozilla, Safari etc
page_request = new XMLHttpRequest()
else if (window.ActiveXObject){ // if IE
try {
page_request = new ActiveXObject("Msxml2.XMLHTTP")
}
catch (e){
try{
page_request = new ActiveXObject("Microsoft.XMLHTTP")
}
catch (e){}
}
}
else
return false
page_request.onreadystatechange=function(){
loadpage(page_request, containerid)
}
page_request.open('GET', url, true)
page_request.send(null)
}
function loadpage(page_request, containerid){
if (page_request.readyState == 4 && (page_request.status==200 || window.location.href.indexOf("http")==-1))
document.getElementById(containerid).innerHTML=page_request.responseText
}
function loadobjs(){
if (!document.getElementById)
return
for (i=0; i<arguments.length; i++){
var file=arguments[i]
var fileref=""
if (loadedobjects.indexOf(file)==-1){ //Check to see if this object has not already been added to page before proceeding
if (file.indexOf(".js")!=-1){ //If object is a js file
fileref=document.createElement('script')
fileref.setAttribute("type","text/javascript");
fileref.setAttribute("src", file);
}
else if (file.indexOf(".css")!=-1){ //If object is a css file
fileref=document.createElement("link")
fileref.setAttribute("rel", "stylesheet");
fileref.setAttribute("type", "text/css");
fileref.setAttribute("href", file);
}
}
if (fileref!=""){
document.getElementsByTagName("head").item(0).appendChild(fileref)
loadedobjects+=file+" " //Remember this object as being already added to page
}
}
}
</script>
меню..
<a href="/" onclick="ajaxpage('/', 'html');return false;">main Page</a>
<a href="/music" onclick="ajaxpage('/music', 'html');return false;">music Page</a>
<a href="/videos" onclick="ajaxpage('/videos', 'html');return false;">videos Page</a>
<a href="/messages/inbox" onclick="ajaxpage('/messages/inbox', 'html');return false;">inbox Page</a>
<a href="/members/settings/general" onclick="ajaxpage('/members/settings/general', 'html');return false;">settings Page</a>
<a href="/members/edit/profile" onclick="ajaxpage('/members/edit/profile', 'html');return false;">edit Page</a>
оно дублирует весь сайт по айдиштмл <html id="html"