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copied!<p>Got this solution from <a href="http://abcoder.com/javascript/jquery/simple-check-uncheck-all-jquery-function/" rel="nofollow noreferrer">http://abcoder.com/javascript/jquery/simple-check-uncheck-all-jquery-function/</a> <strong>(now dead)</strong>:</p> <p><strong>JavaScript and HTML code</strong></p> <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false"> <div class="snippet-code"> <pre class="snippet-code-js lang-js prettyprint-override"><code>var NUM_BOXES = 10; // last checkbox the user clicked var last = -1; function check(event) { // in IE, the event object is a property of the window object // in Mozilla, event object is passed to event handlers as a parameter if (!event) { event = window.event } var num = parseInt(/box\[(\d+)\]/.exec(this.name)[1]); if (event.shiftKey && last != -1) { var di = num > last ? 1 : -1; for (var i = last; i != num; i += di) { document.forms.boxes['box[' + i + ']'].checked = true; } } last = num; } function init() { for (var i = 0; i < NUM_BOXES; i++) { document.forms.boxes['box[' + i + ']'].onclick = check; } }</code></pre> <pre class="snippet-code-html lang-html prettyprint-override"><code><body onload="init()"> <form name="boxes"> <input name="box[0]" type="checkbox"> <input name="box[1]" type="checkbox"> <input name="box[2]" type="checkbox"> <input name="box[3]" type="checkbox"> <input name="box[4]" type="checkbox"> <input name="box[5]" type="checkbox"> <input name="box[6]" type="checkbox"> <input name="box[7]" type="checkbox"> <input name="box[8]" type="checkbox"> <input name="box[9]" type="checkbox"> </form></body></code></pre> </div> </div> </p>

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