.chatHeader {
   background-image: url(http://cs631331.vk.me/v631331947/2e5c/2SvxYqAgicY.jpg);
   background-position: center center;
   background-repeat:repeat;
}
.chatMain, .chatEventDiv {background-image:url("http://cs630927.vk.me/v630927945/32cb/6hjz6jqfakA.jpg");background-position:right bottom;
background-repeat:no-repeat;}