Ciao ragazzi,
So che se ne è già parlato ma non sono riuscito ancora ad inserire un preload (gif animata) per caricare delle pagine attraverso AJAX. Lo script che uso è il seguente, potreste dirmi cosa e dove inserire per inserire un semplice preload? Grazie e mille.
Grazie ancoraCodice PHP:<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="it">
<head>
<title></title>
<meta http-equiv="Content-type" content="text/html; charset=iso-8859-1" />
<style type="text/css">
#leftcolumn{
float:left;
width:100px;
height: 120px;
border: 1px solid black;
padding: 5px;
padding-left: 8px;
}
#leftcolumn a{
padding: 3px 1px;
display: block;
width: 100%;
text-decoration: none;
font-weight: bold;
border-bottom: 1px solid gray;
}
#leftcolumn a:hover{
background-color: #FFFF80;
}
#rightcolumn{
float:left;
width:400px;
min-height: 400px;
border: 3px solid black;
margin-left: 10px;
padding: 5px;
padding-bottom: 8px;
}
* html #rightcolumn{ /*IE only style*/
height: 400px;
}
</style>
<script type="text/javascript">
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>
</head>
<body >
<div align="center">
<div id="leftcolumn">
[url="javascript:ajaxpage('file1.htm', 'rightcolumn');"]File 1[/url]
[url="javascript:ajaxpage('file2.htm', 'rightcolumn');"]File 2[/url]
[url="javascript:ajaxpage('file3.htm', 'rightcolumn');"]File 3[/url]
</div>
<div id="rightcolumn"></div>
<br style="clear:both" />
</div>
</body>
</html>
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