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POAdd CSS class with JavaScript
 

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    <p>I have the following code that makes check-boxes a little fancier by adding an image sprite to the check-box.</p> <p>Javascript:</p> <pre><code>$(document).ready(function() { /* see if anything is previously checked and reflect that in the view*/ $(".checklist input:checked").parent().addClass("selected"); /* handle the user selections */ $(".checklist .checkbox-select").click( function(event) { event.preventDefault(); $(this).parent().addClass("selected"); $(this).parent().find(":checkbox").attr("checked", "checked"); } ); $(".checklist .checkbox-deselect").click( function(event) { event.preventDefault(); $(this).parent().removeClass("selected"); $(this).parent().find(":checkbox").removeAttr("checked"); } ); }); </code></pre> <p>CSS:</p> <pre><code>.checklist { list-style: none; margin: 0; padding: 0; } .checklist li { float: left; margin-right: 10px; background: url(resources/i/checkboxbg.gif) no-repeat 0 0; width: 105px; height: 150px; position: relative; font: normal 11px/1.3 "Lucida Grande" , "Lucida" , "Arial" ,Sans-serif; } .checklist li.selected { background-position: -105px 0; } .checklist li.selected .checkbox-select { display: none; } .checkbox-select { display: block; float: left; position: absolute; top: 118px; left: 10px; width: 85px; height: 23px; background: url(resources/i/select.gif) no-repeat 0 0; text-indent: -9999px; } .checklist li input { display: block; } a.checkbox-deselect { display: none; color: white; font-weight: bold; text-decoration: none; position: absolute; top: 120px; right: 10px; } .checklist li.selected a.checkbox-deselect { display: block; } .checklist li label { display: block; text-align: center; padding: 8px; } </code></pre> <p>Markup:</p> <pre><code>&lt;ul class="checklist"&gt; &lt;li&gt; &lt;asp:CheckBox ID="CheckBox1" Text="&lt;img src='' /&gt;Option" runat="server" /&gt; &lt;a class="checkbox-select" href="#"&gt;Select&lt;/a&gt; &lt;a class="checkbox-deselect" href="#"&gt;Cancel&lt;/a&gt; &lt;/li&gt; &lt;/ul&gt; </code></pre> <p>When the check-box is selected, <code>class="selected"</code> is added to the <code>&lt;li&gt;</code>. The trouble is that if the user hits the back button, the check-boxes are still selected (page cached), but the css is not re-applied. I could always add some cache-control so the browser loads a fresh copy of the page each time, so the check boxes will not be checked, but I would rather re-apply the the class to the list item.</p> <p>Each <code>&lt;ul class="checklist"&gt;</code> is wrapped in an asp.net panel that is rendered as a div with an id of ct100_ContentPlaceHolder1_Panel1 - how would I loop through each check-box in that panel and re-attach the css class if the check-box is checked?</p> <p>Thanks in advance!</p>
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