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Optional use of HTML editor.

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  1. +44 −0 lang/en/help/lesson/useeditor.html
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+<p align="center"><b>Use of the HTML Editor</b></p>
+
+<p>When editing pages this option enables the use the HTML editor (called the
+ editor from this point) instead of simple textarea boxes. The editor
+ allows the simple formatting of text and the easy addition of
+ &quot;advanced&quot; features such as links.</p>
+
+<p>The editor is switched on by clicking on the box next to <b>Use Editor</b>.
+ The editor is associated with the items on an individual basis. For
+ example, switching the editor on for, say, the <b>Response 1</b> item just
+ sets the editor on for that item, it does <i>not</i> set it on for all the
+ Response boxes.</p>
+
+<p>If the editor is required for some of the items of a page, first click on
+ the <b>Use Editor</b> boxes (They should then contain ticks.) The page is
+ then re-displayed to activate the use of the editor. This is done by
+ clicking on the <b>Redisplay Page</b> button at the foot of the page.</p>
+
+<p>Note that care should be taken when using the editor. In most cases it
+ should not cause any problems. However, it is <i>not</i> recommended for
+ <b>Answers of Short Answer and Numeric type questions</b>. The editor can
+ add extra &quot;invisible&quot; HTML tags which <b>stop</b> comparisons
+ working as expected. Further, the <b>Descriptions</b> in Branch Tables are
+ used in Buttons and again if they contain any HTML tags this can cause
+ problems. There are no problems with Answers which are used only for
+ display, such as those in Multichoice type questions. Again use of the
+ editor for Response items should not cause any problems.</p>
+
+<p>If a problem is suspected with any of the text items it is quite safe to
+ switch the editor off (by removing the tick in the <b>Use editor</b> box).
+ When the page is redisplayed, the &quot;raw&quot; text can then be seen in
+ the textarea box. The text can be edited as required. In fact, switching
+ the editor on and off repeatedly for a particular item should <i>not</i>
+ change the text.</p>
+
+<p>The &quot;state&quot; of the <b>Use editor</b> option is saved with each
+ item. Thus if a page is re-edited the items which were using the editor
+ will again appear within the editor.</p>
+
+<p>Finally, the editor is quite &quot;expensive&quot; in terms of resources
+ within the browser. If items do not require the use of the editor it is
+ quicker and less prone to resource problems to just use the standard
+ textarea boxes.</p>
+
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