.hide-blocks {height:65px;width:18px;background-image:url(http://www.testcs.ru/designs_105/hide_block.gif);position: fixed;top:30%;right:0;cursor:pointer;z-index:100001;}
.show-blocks {height:65px;width:18px;background-image:url(http://www.testcs.ru/designs_105/show_block.gif);position: fixed;top:30%;right:0;cursor:pointer;z-index:100001;}