.checkbox{float:left; background:url(../images/checkbox.png) no-repeat top left; width:24px; height:25px; margin:-2px 5px 0 0; position:relative;}
.checkbox input{opacity:0; position:absolute; height:100% !important; width:100% !important;}
.checkbox-selected{float:left; background:url(../images/checkbox-selected.png) no-repeat top left; width:24px; height:25px; margin:-2px 5px 0 0;}
.checkbox-selected input{opacity:0; position:absolute;}