A{text-decoration:none;color:#CC6600;}
A:Visited{color:#CC6600;}
A:Active{color:#CC6600;}
A:Hover{color:#33CC00;}

A.bt_01{text-decoration:none;color:#FF0000;} 
A.bt_01:visited {color:#FF0000;} 
A.bt_01:active {color:#FF0000;}
A.bt_01:hover {color:#33CC00;}