Your jquery code isn't right.
optionsPanel.append("<div style='padding:2px;''><input id='box"+i+"' class='filterType' type='checkbox' value='"+allOptions[i]+"'><label for='box"+i+"'>"+allOptions[i]+"</label></div>");
What did i change?
You had too much ' here: <label for='box'"+i+"''>"+allOptions[i]+"</label>
<label for='box'"+i+"''>"+allOptions[i]+"</label>
<label for='box"+i+"'>"+allOptions[i]+"</label>