#p1h
{display: block; width: 15px;height: 15px;background: url("images/menu_button_1.gif") no-repeat 0 0;}
#p1h
{background-position: 0 -15px;}
#p1h span
{display: none;}
#p1h:hover
{background-position: 0 -15px;}
#p1h span
{display: none;}