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- <!DOCTYPE html>
- <html>
- <head>
- <title></title>
- <script type="text/javascript">
- var next = 0;
- function addVisibleBox() {
- var box = document.createElement('DIV');
- box.id = 'box' + next++;
- box.className = 'redbox';
- box.style.width = '150px';
- box.style.height = '150px';
- box.style.backgroundColor = 'red';
- box.style.border = '1px solid black';
- box.style.margin = '5px';
- box.style.visibility = 'visible'
- window.setTimeout(function() {
- document.body.appendChild(box);
- }, 1000);
- }
- function addHiddenBox() {
- var box = document.createElement('DIV');
- box.id = 'box' + next++;
- box.className = 'redbox';
- box.style.width = '150px';
- box.style.height = '150px';
- box.style.backgroundColor = 'red';
- box.style.border = '1px solid black';
- box.style.margin = '5px';
- box.style.visibility = 'hidden';
- window.setTimeout(function() {
- document.body.appendChild(box);
- }, 1000);
- }
- </script>
- </head>
- <body>
- <input id="addVisible" type="button" value="Add a visible box!" onclick="addVisibleBox()"/>
- <input id="addHidden" type="button" value="Add a hidden box!" onclick="addHiddenBox();" />
- </body>
- </html>
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