combobox performance

[xiaohuo315]

when a page contains 10 combobox,this page will render slowly. all these combobox are created from <select> element like this:

Code:

<select id="cc" class="easyui-combobox" name="dept" style="width:200px;">
    <option value="aa">aitem1</option>
    <option>bitem2</option>
    <option>bitem3</option>
    <option>ditem4</option>
    <option>eitem5</option>
</select>