Custom Image Animation for LoadMask

Hi everyone,

I was trying to change the load mask image but it was not changing with my custom image.

CSS to change image:

.custom-mask-loading {

background-image: url(http://ift.tt/1xGMOQR);

background-position: center center;

}

LoadMask:
var myMask = new Ext.LoadMask(Ext.getBody(), {

cls: 'custom-mask-loading',

msg: 'Please wait...'

});

myMask.show();

Thanks in advance

Venkat

Custom Image Animation for LoadMask