Change Background image of toolbar using sencha touch

[sandeeppandey350]

Dear All,

I am new in sencha touch and i am making one application which contains one image which is small in size .I want to set that image as a toolbar image and also i want to set no-repetation of image and width should be 99% style property.But i don't have any ideaScreen shot 2011-10-24 at 1.18.19 PM.jpg
I wants this type of toolbar.

please anybody suggest me how to solve that problem.


Thanks & Regards
Pradeep