$(document).ready(function() {
$("#gate option[value='Gateway 2']").prop('selected', true);
// you need to specify id of combo to set right combo, if more than one combo
});
$('select').on('change', function() {
alert( this.value );
});$('select option[value=8272]').attr('selected', '');$('#ddlID').val('New_OptionValue').change()$("#mySelectElementID").val("my_new_value"); //change selected option/value with jQuery
$('#choose').change(function(event) {
$.post('info.php', { selected: $('#choose').val() },
function(data) {
$('#update').html(data);
}
);
});