新用户，长期研究员。
我的区使用Moodle，我正在设置我的网页。但是Moodle并不喜欢所有的HTML，CSS或JAVA代码。因此，我需要将它一起散列。默认情况下，Moodle有一个DIV ID =“inst4”
<div id="inst4" class="block_navigation block" role="navigation" data-block="navigation" data-instanceid="4" aria-labelledby="instance-4-header" data-dockable="1">
<div class="header" id="yui_3_17_2_1_1471893404838_261"><div class="title" id="yui_3_17_2_1_1471893404838_177">
<div class="block_action">
<img class="block-hider-hide" alt="Hide Navigation block" src="http://moodle.tcu2905.us/theme/image.php/clean/core/1470413034/t/switch_minus" tabindex="0" title="Hide Navigation block">
<img class="block-hider-show" alt="Show Navigation block" src="http://moodle.tcu2905.us/theme/image.php/clean/core/1470413034/t/switch_plus" tabindex="0" title="Show Navigation block">
<input type="image" class="moveto customcommand requiresjs" alt="Move this to the dock" title="Dock Navigation block" src="http://moodle.tcu2905.us/theme/image.php/clean/core/1470413034/t/block_to_dock">
</div>
<h2 id="instance-4-header">Navigation</h2></div>
</div>
<div class="content" id="yui_3_17_2_1_1471893404838_249">
<ul class="block_tree list" role="tree" data-ajax-loader="block_navigation/nav_loader" id="yui_3_17_2_1_1471893404838_248">
<li class="type_unknown depth_1 contains_branch current_branch" aria-labelledby="label_1_1" tabindex="-1" id="yui_3_17_2_1_1471893404838_247">
<p class="tree_item branch active_tree_node canexpand navigation_node" role="treeitem" aria-expanded="true" aria-owns="random57bb4f9c947b61_group" data-collapsible="false" tabindex="0" aria-selected="true" id="yui_3_17_2_1_1471893404838_255">
<a tabindex="-1" id="label_1_1" href="http://moodle.tcu2905.us/my/">Dashboard</a></p>
<ul id="random57bb4f9c947b61_group" role="group" tabindex="-1">
<li class="type_setting depth_2 item_with_icon" aria-labelledby="label_2_2" tabindex="-1">
<p class="tree_item hasicon" role="treeitem" tabindex="-1" aria-selected="false">
<a tabindex="-1" id="label_2_2" href="http://moodle.tcu2905.us/?redirect=0">
<img class="smallicon navicon" alt="" src="http://moodle.tcu2905.us/theme/image.php/clean/core/1470413034/i/navigationitem" tabindex="-1">
<span class="item-content-wrap" tabindex="-1">Site home</span>
</a>
</p>
</li>
<li class="type_course depth_2 contains_branch" aria-labelledby="label_2_3" tabindex="-1">
<p class="tree_item branch" role="treeitem" aria-expanded="false" aria-owns="random57bb4f9c947b63_group" tabindex="-1" aria-selected="false">
<span tabindex="-1" id="label_2_3" title="Tri-City United Moodle Site">Site pages</span>
</p>
<ul id="random57bb4f9c947b63_group" role="group" aria-hidden="true" tabindex="-1">
<li class="type_unknown depth_3 item_with_icon" aria-labelledby="label_3_5" tabindex="-1">
<p class="tree_item hasicon" role="treeitem" tabindex="-1" aria-selected="false">
<a tabindex="-1" id="label_3_5" href="http://moodle.tcu2905.us/blog/index.php">
<img class="smallicon navicon" alt="" src="http://moodle.tcu2905.us/theme/image.php/clean/core/1470413034/i/navigationitem" tabindex="-1">
<span class="item-content-wrap" tabindex="-1">Site blogs</span>
</a>
</p>
</li>
<li class="type_custom depth_3 item_with_icon" aria-labelledby="label_3_6" tabindex="-1">
<p class="tree_item hasicon" role="treeitem" tabindex="-1" aria-selected="false">
<a tabindex="-1" id="label_3_6" href="http://moodle.tcu2905.us/badges/view.php?type=1">
<img class="smallicon navicon" alt="" src="http://moodle.tcu2905.us/theme/image.php/clean/core/1470413034/i/navigationitem" tabindex="-1">
<span class="item-content-wrap" tabindex="-1">Site badges</span>
</a>
</p>
</li>
<li class="type_setting depth_3 item_with_icon" aria-labelledby="label_3_7" tabindex="-1">
<p class="tree_item hasicon" role="treeitem" tabindex="-1" aria-selected="false">
<a tabindex="-1" id="label_3_7" href="http://moodle.tcu2905.us/tag/search.php">
<img class="smallicon navicon" alt="" src="http://moodle.tcu2905.us/theme/image.php/clean/core/1470413034/i/navigationitem" tabindex="-1">
<span class="item-content-wrap" tabindex="-1">Tags</span>
</a>
</p>
</li>
<li class="type_custom depth_3 item_with_icon" aria-labelledby="label_3_8" tabindex="-1">
<p class="tree_item hasicon" role="treeitem" tabindex="-1" aria-selected="false">
<a tabindex="-1" id="label_3_8" href="http://moodle.tcu2905.us/calendar/view.php?view=month">
<img class="smallicon navicon" alt="" src="http://moodle.tcu2905.us/theme/image.php/clean/core/1470413034/i/navigationitem" tabindex="-1">
<span class="item-content-wrap" tabindex="-1">Calendar</span>
</a>
</p>
</li>
<li class="type_activity depth_3 item_with_icon" aria-labelledby="label_3_9" tabindex="-1">
<p class="tree_item hasicon" role="treeitem" tabindex="-1" aria-selected="false">
<a tabindex="-1" id="label_3_9" title="Forum" href="http://moodle.tcu2905.us/mod/forum/view.php?id=1">
<img class="smallicon navicon" alt="Forum" title="Forum" src="http://moodle.tcu2905.us/theme/image.php/clean/forum/1470413034/icon" tabindex="-1">
<span class="item-content-wrap" tabindex="-1">Site news</span>
</a>
</p>
</li>
</ul>
</li>
<li class="type_system depth_2 contains_branch" aria-labelledby="label_2_10" tabindex="-1" id="yui_3_17_2_1_1471893404838_246">
<p class="tree_item branch" role="treeitem" id="expandable_branch_0_courses" aria-expanded="false" data-requires-ajax="true" data-loaded="false" data-node-id="expandable_branch_0_courses" data-node-key="courses" data-node-type="0" tabindex="-1" aria-selected="false">
<a tabindex="-1" id="label_2_10" href="http://moodle.tcu2905.us/course/index.php">Courses</a>
</p>
</li>
</ul>
</li>
</ul>
</div>
我的问题是如何使用＆lt;'script＆gt;隐藏DIV ID =“inst4”？
我已经尝试了以下Stack Overflow帖子：
document.getElementById("inst4").style.visibility = "hidden";
但是，它并没有从网站上删除DIV ID =“inst4”。我想知道它是否真的可能，知道我无法控制DIV ID =“inst4”。
我知道＆lt;'脚本＆gt;工作，因为我能够使用以下方式加载后台：
<script>document.body.style.backgroundImage = "url('http://wallpaper.zone/img/149826.jpg')";
有什么想法吗？
答案 0 :(得分：0)
有几种方法可以处理需要访问页面上尚未加载的元素的脚本。
答案 1 :(得分：0)
我今天发现Moodle的功能与标准网站相同（第一次使用它）。因此，我无法实现我的目标。感谢大家的意见！