.dropDownHeading {border:solid 1px #aaa; background-color:#fff; padding:2px 18px 2px 3px; cursor:pointer; background-image:url('/Images/DropdownArrow.png'); background-position:right top; background-repeat:no-repeat;}
.dropDownBody { padding-right:10px; max-height:400px; overflow-x:hidden; overflow-y:auto; position:absolute; z-index:1000; display:none; margin-top:3px; background-color:#fff; border:solid 1px #aaa; -webkit-box-shadow:1px 1px 1px #ccc;}
.dropDownBody .treeNode { white-space:nowrap;  }