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Save variable from remote server using XMLHttpRequest


Leif

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I have seen a couple of other threads relatively similar but I still find my problem unique so I hope you guys give me a chance.


What I want to do: use proxy to bypass same origin policy and to save these values (that changes and need to be checked by timer) into variables that can be modified.


A server contains data.asp which looks something like this and updates from time to time (although with a bit more data):



{ "Title":"Tile of song" ,"Artist":"The artist" ,"Album":"The album" ,"CDCover":"/covers/randomcover.jpg" }

The method I have tried is like the one on http://qnimate.com/same-origin-policy-in-nutshell/#Same_Origin_Policy_for_AJAX. In case you guys don't want to follow the link I've posted the data here as well.



<script>
function loadXMLDoc()
{
var xmlhttp;
if (window.XMLHttpRequest)
{
xmlhttp=new XMLHttpRequest();
}
else
{
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function()
{
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById("myDiv").innerHTML=xmlhttp.responseText;
}
}
xmlhttp.open("GET","http://www.qnimate.com/ajaxdata.php",true);
xmlhttp.send();
}
</script>
</head>
<body>

<button type="button" onclick="loadXMLDoc()">Request data</button>
<div id="myDiv"></div>

And the proxy file:



<?php
echo file_get_contents('http://www.qscutter.com/ajaxdata.txt');
?>

So what I want to do is store the data into variables that I can alter, not show it inside a div using innerHTML. Preferably check this ever so often for changes as well.


 


Suggestions?


I can add that I have the permission from the server owner to retrieve the information and to use it but no possibility to add script to their server, hence the proxy bypass attempt.


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