JavaScript code for getting the selected value from a combo box

Question

Can any one give me a sample code that gets the selected value from an existing combo box?

I have this code but its not doing anything:

function check () 
{
    var e = document.getElementById("ticket_category_clone");
    var str = e.options[e.selectedIndex].text;

    alert(str);

    if (str==="Hardware")
    {
        SPICEWORKS.utils.addStyle('#ticket_c_hardware_clone{display: none !important;}');
    }       
}

SPICEWORKS.app.helpdesk.ready(check);​

heres a img of the code

and the code

<select id="ticket_category_clone" name="ticket[category]" hdpp="ticket_category">
<option value=""></option><option value="Hardware">Hardware</option>
<option value="Software">Software</option>
<option value="Rede" selected="selected">Rede</option>
<option value="Pedidos">Pedidos</option>
<option value="Formação/Dúvida">Formação/Dúvida</option>
<option value="Outro">Outro</option><option value="#edit_categories#">Edit Categories...</option></select>

what i want its find a way to get the selected value fo that combobox

Answer 1

There is an unnecessary hashtag; change the code to this:

var e = document.getElementById("ticket_category_clone").value;