Justify text inside Evernote notes

evernote.js

function justifyDoc() {
  /* Justify all the paragraphs in a note */
  iframe = document.getElementsByClassName("RichTextArea-entinymce")[0];
  paragraphs = iframe.contentWindow.document.getElementsByTagName('p');

  for (p of paragraphs) {  
    p.style['text-align'] = 'justify';
  };
};

function hilightSelectedText(color='#fffaa5') {
  /* Hilight selected text */
  iframe = document.getElementsByClassName("RichTextArea-entinymce")[0];    
  iframe.contentWindow.document.execCommand('hiliteColor', false, color);
};

function clearHighlight() {
  /* Clear hilight from selected text */
  iframe = document.getElementsByClassName("RichTextArea-entinymce")[0];  
  var color = "#fffaa5";
  iframe.contentWindow.doc.execCommand('hiliteColor', false, 'white');
};