help forAdd button to set input value from code but data don't refresh

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jQuery

<asp:Button ID="Buttone" runat="server" Text="Buttone" disabled="true" OnClientClick="return addcourse();" />

script

function addcourse() {

$("#inp").val("");
setTimeout(maybe, 1000);
return false;
}

function maybe() {
$("#inp").focus();
$("#inp").val("bia");
jQuery_1_7_1("#inp").autocomplete("widget").show();
}

but i view the old list (i get value from db)

how can do? Can simulate keyboard input from code??


Thanks

Claudio Amboldi