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POxmlHTTPrequest won't open ("GET" , url, true); I'm miffed! PHP
 

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  1. POxmlHTTPrequest won't open ("GET" , url, true); I'm miffed! PHP
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    <p>I've been trying to get a url to open but I'm miffed as to why this hasn't worked. The code is listed and explained below. Any help will be deeply appreciated.</p> <p>The object:</p> <pre><code>function getXMLHTTPRequest() { var req = false; try { /* for Firefox */ req = new XMLHttpRequest(); } catch (err) { try { /* for some versions of IE */ req = new ActiveXObject("Msxml2.XMLHTTP"); } catch (err) { try { /* for some other versions of IE */ req = new ActiveXObject("Microsoft.XMLHTTP"); } catch (err) { req = false; } } } return req; } </code></pre> <p>The object is called like this:</p> <pre><code>&lt;script type="text/javascript"&gt; var myDelete = new getXMLHTTPRequest(); &lt;/script&gt; </code></pre> <p>Now here's what I want to do:</p> <pre><code>function removeArticle(id) { if (myDelete) { try { var deletUrl = "delete.php"; var query = deletUrl + "?theid=" + id; myDelete.open("GET", query, true); myDelete.onreadystatechange = removeArticleResponse; myDelete.send(null); } catch (e) { alert ("Unable to connect to the server:\n" + e.toString()); } } else { alert ("Bad! Very BAD!"); } } </code></pre> <p>When I do this:</p> <pre><code> if (myDelete.open("GET", query, true)) { myDelete.onreadystatechange = removeArticleResponse; myDelete.send(null); } else { alert ("No road!"); } </code></pre> <p>The alert("No road!"); shows me that the code doesn't execute passed this point: </p> <pre><code>if (myDelete.open("GET", query, true)) { </code></pre> <p>This means that the if (myDelete) { works. The code passes this stage and for some reason stops here: myDelete.open("GET", query, true); It won't open the url. I'm not sure what the problem is. </p> <p><strong>Edit:</strong> Here's the function used to access the server response:</p> <pre><code>function removeArticleResponse () { if (myDelete.status == 4) { if (myDelete.status == 200) { try { response = myDelete.responseText; document.getElementById('displaynewsletterarticleresult').innerHTML = response; } catch(e) { alert("An error occured while reading the response:" + e.toString()); } } else { alert ("An error occured when attempting to retrieve the data:\n" + myDelete.statusText); } } } </code></pre>
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    1. COIs there a reason you're using XMLHttpRequest objects directly instead of one of the libraries that abstract the plumbing from you (such as jQuery)? I don't want to make assumptions, but if you're not aware of them, they save you ALOT of hassle w/ajax (and JS code in general)
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    2. COEven loading jQuery just to get a nice Ajax call is a lot of overhead.
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