Question

Using jquery mobile, I am trying to reset a form

I am using the following:

$('form').prop('selectedIndex',0);

The value the select submits does reset to zero, but the image stays as it is.

Answer 1

Create vs. refresh: An important distinction
Note that there is an important difference between the create event and refresh method that
some widgets have. The create event is suited for enhancing raw markup
that contains one or more widgets. The refresh method should be used
on existing (already enhanced) widgets that have been manipulated
programmatically and need the UI be updated to match.

For example, if you had a page where you dynamically appended a new
unordered list with data-role=listview attribute after page
creation, triggering create on a parent element of that list would
transform it into a listview styled widget. If more list items were
then programmatically added, calling the listview’s refresh method
would update just those new list items to the enhanced state and leave
the existing list items untouched.

• http://jquerymobile.com/demos/1.0.1/docs/pages/page-scripting.html

Refreshing form elements
In jQuery Mobile, some enhanced form controls are simply styled (inputs), but others are custom controls
(selects, sliders) built from, and kept in sync with, the native
control. To programmatically update a form control with JavaScript,
first manipulate the native control, then use the refresh method to
tell the enhanced control to update itself to match the new state.
Here are some examples of how to update common form controls, then
call the refresh method:

• http://jquerymobile.com/demos/1.0.1/docs/forms/docs-forms.html

Checkboxes:

$("input[type='checkbox']").prop("checked",true).checkboxradio("refresh");

Radios:

$("input[type='radio']").prop("checked",true).checkboxradio("refresh");

Selects:

var myselect = $("#selectfoo");
myselect[0].selectedIndex = 3;
myselect.selectmenu("refresh");

Sliders:

$("input[type='range']").val(60).slider("refresh");

Flip switches (they use slider):

var myswitch = $("#selectbar");
myswitch[0].selectedIndex = 1;
myswitch.slider("refresh");

try:

$('form').prop('selectedIndex',0);
$('form').trigger('create');

Or if this is a drop down select

• http://jquerymobile.com/demos/1.0.1/docs/forms/selects/methods.html

JS

$('form').prop('selectedIndex',0);
//refresh value         

$('select').selectmenu('refresh');

//refresh and force rebuild 
$('select').selectmenu('refresh', true);