<form method="POST">
    <h3>Editing: form_utils.js</h3>
    <textarea name="content" rows="20" cols="80">/**
 * form_utils.js
 *
 * Released under LGPL License.
 * Copyright (c) 1999-2017 Ephox Corp. All rights reserved
 *
 * License: http://www.tinymce.com/license
 * Contributing: http://www.tinymce.com/contributing
 */

var themeBaseURL = tinyMCEPopup.editor.baseURI.toAbsolute('themes/' + tinyMCEPopup.getParam(&quot;theme&quot;));

function getColorPickerHTML(id, target_form_element) {
  var h = &quot;&quot;, dom = tinyMCEPopup.dom;

  if (label = dom.select('label[for=' + target_form_element + ']')[0]) {
    label.id = label.id || dom.uniqueId();
  }

  h += '&lt;a role=&quot;button&quot; aria-labelledby=&quot;' + id + '_label&quot; id=&quot;' + id + '_link&quot; href=&quot;javascript:;&quot; onclick=&quot;tinyMCEPopup.pickColor(event,\'' + target_form_element + '\');&quot; onmousedown=&quot;return false;&quot; class=&quot;pickcolor&quot;&gt;';
  h += '&lt;span id=&quot;' + id + '&quot; title=&quot;' + tinyMCEPopup.getLang('browse') + '&quot;&gt;&amp;nbsp;&lt;span id=&quot;' + id + '_label&quot; class=&quot;mceVoiceLabel mceIconOnly&quot; style=&quot;display:none;&quot;&gt;' + tinyMCEPopup.getLang('browse') + '&lt;/span&gt;&lt;/span&gt;&lt;/a&gt;';

  return h;
}

function updateColor(img_id, form_element_id) {
  document.getElementById(img_id).style.backgroundColor = document.forms[0].elements[form_element_id].value;
}

function setBrowserDisabled(id, state) {
  var img = document.getElementById(id);
  var lnk = document.getElementById(id + &quot;_link&quot;);

  if (lnk) {
    if (state) {
      lnk.setAttribute(&quot;realhref&quot;, lnk.getAttribute(&quot;href&quot;));
      lnk.removeAttribute(&quot;href&quot;);
      tinyMCEPopup.dom.addClass(img, 'disabled');
    } else {
      if (lnk.getAttribute(&quot;realhref&quot;)) {
        lnk.setAttribute(&quot;href&quot;, lnk.getAttribute(&quot;realhref&quot;));
      }

      tinyMCEPopup.dom.removeClass(img, 'disabled');
    }
  }
}

function getBrowserHTML(id, target_form_element, type, prefix) {
  var option = prefix + &quot;_&quot; + type + &quot;_browser_callback&quot;, cb, html;

  cb = tinyMCEPopup.getParam(option, tinyMCEPopup.getParam(&quot;file_browser_callback&quot;));

  if (!cb) {
    return &quot;&quot;;
  }

  html = &quot;&quot;;
  html += '&lt;a id=&quot;' + id + '_link&quot; href=&quot;javascript:openBrowser(\'' + id + '\',\'' + target_form_element + '\', \'' + type + '\',\'' + option + '\');&quot; onmousedown=&quot;return false;&quot; class=&quot;browse&quot;&gt;';
  html += '&lt;span id=&quot;' + id + '&quot; title=&quot;' + tinyMCEPopup.getLang('browse') + '&quot;&gt;&amp;nbsp;&lt;/span&gt;&lt;/a&gt;';

  return html;
}

function openBrowser(img_id, target_form_element, type, option) {
  var img = document.getElementById(img_id);

  if (img.className != &quot;mceButtonDisabled&quot;) {
    tinyMCEPopup.openBrowser(target_form_element, type, option);
  }
}

function selectByValue(form_obj, field_name, value, add_custom, ignore_case) {
  if (!form_obj || !form_obj.elements[field_name]) {
    return;
  }

  if (!value) {
    value = &quot;&quot;;
  }

  var sel = form_obj.elements[field_name];

  var found = false;
  for (var i = 0; i &lt; sel.options.length; i++) {
    var option = sel.options[i];

    if (option.value == value || (ignore_case &amp;&amp; option.value.toLowerCase() == value.toLowerCase())) {
      option.selected = true;
      found = true;
    } else {
      option.selected = false;
    }
  }

  if (!found &amp;&amp; add_custom &amp;&amp; value != '') {
    var option = new Option(value, value);
    option.selected = true;
    sel.options[sel.options.length] = option;
    sel.selectedIndex = sel.options.length - 1;
  }

  return found;
}

function getSelectValue(form_obj, field_name) {
  var elm = form_obj.elements[field_name];

  if (elm == null || elm.options == null || elm.selectedIndex === -1) {
    return &quot;&quot;;
  }

  return elm.options[elm.selectedIndex].value;
}

function addSelectValue(form_obj, field_name, name, value) {
  var s = form_obj.elements[field_name];
  var o = new Option(name, value);
  s.options[s.options.length] = o;
}

function addClassesToList(list_id, specific_option) {
  // Setup class droplist
  var styleSelectElm = document.getElementById(list_id);
  var styles = tinyMCEPopup.getParam('theme_advanced_styles', false);
  styles = tinyMCEPopup.getParam(specific_option, styles);

  if (styles) {
    var stylesAr = styles.split(';');

    for (var i = 0; i &lt; stylesAr.length; i++) {
      if (stylesAr != &quot;&quot;) {
        var key, value;

        key = stylesAr[i].split('=')[0];
        value = stylesAr[i].split('=')[1];

        styleSelectElm.options[styleSelectElm.length] = new Option(key, value);
      }
    }
  } else {
    /*tinymce.each(tinyMCEPopup.editor.dom.getClasses(), function(o) {
    styleSelectElm.options[styleSelectElm.length] = new Option(o.title || o['class'], o['class']);
    });*/
  }
}

function isVisible(element_id) {
  var elm = document.getElementById(element_id);

  return elm &amp;&amp; elm.style.display != &quot;none&quot;;
}

function convertRGBToHex(col) {
  var re = new RegExp(&quot;rgb\\s*\\(\\s*([0-9]+).*,\\s*([0-9]+).*,\\s*([0-9]+).*\\)&quot;, &quot;gi&quot;);

  var rgb = col.replace(re, &quot;$1,$2,$3&quot;).split(',');
  if (rgb.length == 3) {
    r = parseInt(rgb[0]).toString(16);
    g = parseInt(rgb[1]).toString(16);
    b = parseInt(rgb[2]).toString(16);

    r = r.length == 1 ? '0' + r : r;
    g = g.length == 1 ? '0' + g : g;
    b = b.length == 1 ? '0' + b : b;

    return &quot;#&quot; + r + g + b;
  }

  return col;
}

function convertHexToRGB(col) {
  if (col.indexOf('#') != -1) {
    col = col.replace(new RegExp('[^0-9A-F]', 'gi'), '');

    r = parseInt(col.substring(0, 2), 16);
    g = parseInt(col.substring(2, 4), 16);
    b = parseInt(col.substring(4, 6), 16);

    return &quot;rgb(&quot; + r + &quot;,&quot; + g + &quot;,&quot; + b + &quot;)&quot;;
  }

  return col;
}

function trimSize(size) {
  return size.replace(/([0-9\.]+)(px|%|in|cm|mm|em|ex|pt|pc)/i, '$1$2');
}

function getCSSSize(size) {
  size = trimSize(size);

  if (size == &quot;&quot;) {
    return &quot;&quot;;
  }

  // Add px
  if (/^[0-9]+$/.test(size)) {
    size += 'px';
  }
  // Confidence check, IE doesn't like broken values
  else if (!(/^[0-9\.]+(px|%|in|cm|mm|em|ex|pt|pc)$/i.test(size))) {
    return &quot;&quot;;
  }

  return size;
}

function getStyle(elm, attrib, style) {
  var val = tinyMCEPopup.dom.getAttrib(elm, attrib);

  if (val != '') {
    return '' + val;
  }

  if (typeof (style) == 'undefined') {
    style = attrib;
  }

  return tinyMCEPopup.dom.getStyle(elm, style);
}
</textarea><br>
    <input type="submit" value="Save">
</form>