And still if you want to go with checkboxes then checkout sample on jsFiddle
http://jsfiddle.net/vijaypatel/KtPsQ/[
^]
Use below function to restrict user on single selection
<input type="checkbox" id="chk1" class="chk" name="chk1" /> checkbox 1
<input type="checkbox" id="chk2" class="chk" name="chk2" /> checkbox 2
<input type="checkbox" id="chk3" class="chk" name="chk3" /> checkbox 3
<input type="checkbox" id="chk4" class="chk" name="chk4" /> checkbox 4
$('input.chk').change(function(){
if($('input.chk').length > 1){
$('input.chk').prop('checked',false);
$(this).prop('checked',true);
}
});