A { TEXT-DECORATION: none;}
a:active {TEXT-DECORATION: none;}
A:hover {TEXT-DECORATION: none;}
a:link {TEXT-DECORATION: none;}
a:visited {TEXT-DECORATION: none;} 


.oa{line-height:31px; height:31px; font-size:14x; color:#FFFFFF}
a.oa{ width:96px; height:31px; overflow:hidden; display:block;line-height:31px; font-size:14px; color:#ff5400; background-image:url(); background-position:0px 0px; background-repeat:no-repeat;  padding-top:3px; color:#FFFFFF;}
a.oa:hover{width:96px; height:31px; overflow:hidden; display:block;line-height:31px; font-size:14px; color:#ff5400; background-image:url(../images/top_dh.jpg); background-position:0px 0px; background-repeat:no-repeat; padding-top:3px;color:#006ACC;}