How to set Checkbox readonly
In some rare cases you may want to make a checkbox readonly. In my case I had to explain what does a checkbox had on a site. One option is to use the attribute "disabled"="disabled" but this makes the checkbox greyed out. If you want to make readonly here is how to do it. <input checked="checked" name="documenti[]" onclick="return false;" type="checkbox" value="valore" /> ;)