Change the cursor can not take effect immediately in IE10 unless I move the mouse

I am using below code and it is working for all browse except IE10 can you please help me for proper solution.

When I change the cursor by JS in IE10, it will not be effective unless I move the mouse.  PLEASE HELP...

function AjaxProcessingIndicator() {
            $('html, body').addClass('busy');
        }
function AjaxCompletionIndicator() {
            $('html, body').removeClass('busy');
            document.body.style.cursor = 'default';
        }