jquery draggable options

i want the draggable object to revert back to its original position when i click a button. i used 'destroy' option but it doesnt seem to work. it disables the dragging but doesnt revert back to original position.

can someone help?

EDIT PART:

$('#Zoom').toggle(function() {
                $("#draggable").draggable({});},
            function() {
                $("#draggable").draggable('destroy');});

this is a toggle button that i am using to enable dragging. the destroy option only disables dragging and does not revert the object back to the original position.

also this is the button i want to make the object come back to its original position:

nextImg.addEventListener('click', function() {img.setAttribute("src", "img"+(++imgnum)+".jpg");}, false);