动态Ajax内容

<script type="text/javascript">

 

//more javascript from http://www.smallrain.net
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>
<a href="javascript:ajaxpage('jsimg/ajax/afile.htm', 'contentarea');">test</a> | <a href="javascript:ajaxpage('jsimg/ajax/file1.htm', 'contentarea');">test2</a>
<div id="contentarea"></div>

 

 

 

 

不通过链接，直接载入
<script type="text/javascript">
ajaxpage('test.htm', 'contentarea') //load "test.htm" into "contentarea" DIV
</script>
载入JS或CSS文件
<a href="javascript:ajaxpage('test.htm', 'contentarea'); loadobjs('external.css', 'feature.js')">test</a>
<div id="contentarea"></div>
不通过链接直接载入
loadobjs('external.css') //load one CSS file
loadobjs('external.css', 'external2.css', 'feature.js') //load 2 CSS files & 1 JS file
loadobjs('feature.js', 'feature2.js', 'feature3.js') //load 3 JS files