JSFiddle - React, Tailwind, and code Playground

HTML

<table cellspacing="0" id="tech-companies-1" class="table table-small-font table-bordered table-striped">
                <thead>
                <tr>
                   <th></th>
                    <th colspan="2" data-priority="1">Lundi<br>2015-05-11</th>
                    <th colspan="2" data-priority="1">Mardi<br>2015-05-12</th>
                    <th colspan="2"  data-priority="1">Mercredi<br>2015-05-13</th>
                    <th colspan="2" data-priority="1">Jeudi<br>2015-05-14</th>
                    <th colspan="2"  data-priority="1">Vendredi<br>2015-05-15</th>
                    <th colspan="2" data-priority="1">Samendi<br>2015-05-16</th>
                    <th colspan="2" data-priority="1">Dimanche<br>2015-05-17</th>
					
                </tr>
                </thead>
                <tbody>


                <tr>
                    <th></th>
                    <td><img src="Content/images/jule.jpg" alt=""  height="34" width="58" /></td>
                    <td><img src="Content/images/treasure2.jpg" alt=""  height="34" width="58" /></td>

                    <td><img src="Content/images/jule.jpg" alt=""  height="34" width="58" /></td>
                    <td><img src="Content/images/treasure2.jpg" alt=""  height="34" width="58" /></td>

                    <td><img src="Content/images/jule.jpg" alt=""  height="34" width="58" /></td>
                    <td><img src="Content/images/treasure2.jpg" alt=""  height="34" width="58" /></td>

                    <td><img src="Content/images/jule.jpg" alt=""  height="34" width="58" /></td>
                    <td><img src="Content/images/treasure2.jpg" alt=""  height="34" width="58" /></td>

                    <td><img src="Content/images/jule.jpg" alt=""  height="34" width="58" /></td>
                    <td><img src="Content/images/treasure2.jpg" alt=""  height="34" width="58" /></td>

                    <td><img src="Content/images/jule.jpg" alt=""  height="34" width="58" /></td>
             ...

CSS

.td_select
{
    background-color:red!important;
}

JavaScript

$(document).ready(function(){ 

	   $(".table").on("click", "td", function() {      
             $(this).closest("td").siblings().removeClass("td_select"); 
             $(this).toggleClass("td_select"); 
			 
       });
});