[jQuery] UI Dialog help with show dialog

[Pitrsonek]

Hi, i have this function:

function showSendMessage(id){
$('#sendMessage').dialog({modal: true,overlay:{opacity:
0.5,background: "black"},title: 'Kontaktovat uživatele'});
//$('#sendMessage').dialog('open');
                $('#sendMessage').css({ display:"block"});
                $('#ClientsRecipientId').attr({ value: id});
        }

this function is use when i click on some buttons (onclick). If I
click on buttone once dialog will be show i close dialog, after second
click on button will be not show.

So i try correct function:

function showSendMessage(id){
$('#sendMessage').dialog({modal: true,overlay:{opacity:
0.5,background: "black"},title: 'Kontaktovat uživatele'});
$('#sendMessage').dialog('open');
                $('#sendMessage').css({ display:"block"});
                $('#ClientsRecipientId').attr({ value: id});
        }

Its quite ok, i can click on buttone how often i want and dialog will
show but when i click on cross icon (close dialog) overlay forever
show and i cant click anywhere.

THX for your advice. Sorry my english isn very good.