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POHow to get a DOM element by id in Javascript code embedded in PHP when using tpl (Smarty)?
 

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  1. POHow to get a DOM element by id in Javascript code embedded in PHP when using tpl (Smarty)?
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    <p>Objective: To be able to load a user selected image file in a resizeable div to allow resizing of image before submitting (using a jQuery resizable plugin). </p> <p>1) The layout of the view is defined in upload_myimage.tpl.html (snippet shown below).</p> <p>2) It is initialized to show an arbitrary image in a div which is set to "resizeable". The image displays and the resizing works.</p> <p>3) After choosing an image file and clicking on "Upload File" (a button in an HTML Form), the PHP function update_mypicture() (snippet shown below) is called to replace the aforementioned image. Error on line 24 of upload.php: Uncaught TypeError: Cannot set property 'onload' of null. img for some reason is returned as null. Any ideas why?</p> <p>-- snippet of tpl code --</p> <pre><code>&lt;div id ="box"&gt; &lt;img src="/image/logo.jpg" width="100%" height="100%" id="image"/&gt; &lt;/div&gt; &lt;script type="text/javascript"&gt; $("#box").resizable(); &lt;/script&gt; </code></pre> <p>-- snippet of php code --</p> <pre><code>&lt;?php if($_POST['submitScaleName'] == "Submit") { ?&gt; &lt;script type="text/javascript"&gt; function scale_mypicture(pic){ var img = parent.document.getElementById("image"); // img is returned as null img.setAttribute("src", pic); var memeFilename = parent.document.getElementById("memeFilename"); memeFilename.value = "&lt;?php echo $_FILES['file']["name"]; ?&gt;"; } parent.document.getElementById("img_filename").value = ""; scale_mypicture("&lt;?php echo '/image/'.$_FILES['file']["name"]; ?&gt;"); &lt;/script&gt; &lt;?php } ?&gt; </code></pre>
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    1. USKaran Chitnis
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      1. POHow to get a DOM element by id in Javascript code embedded in PHP when using tpl (Smarty)?
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    1. COWhere do you call what code? Could you please explain the control flow of your application?
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      1. USapfelbox
 

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