<table id="filtered_equipments" class="equipments">
<tbody>
<tr>
<tr>
<tr>
<td>toto</td>
<div class="dijitReset dijitInline dijitCheckBox" wairole="presentation" role="presentation"  
 
widgetid="dijit_form_CheckBox_14">
<input id="dijit_form_CheckBox_14" class="dijitReset dijitCheckBoxInput" type="checkbox"  
 
dojoattachevent="onmouseover:_onMouse,onmouseout:_onMouse,onclick:_onClick" dojoattachpoint="focusNode"  
 
name="equipments" value="toto" tabindex="0" aria-pressed="false" style="-moz-user-select: none;">
</div>
</tr>
function cocher() { // relier à un bouton
 
var table = dojo.byId("filtered_equipments" );
var list = [];
list = dojo.query('[widgetId]', table);
for (var i=0; i < list.length; i++) {
list[i].value=true;
//ou
list[i].checked = true;
}
}