.styleRadio input {
   cursor:pointer;
   filter:alpha(opacity=0);
   opacity:0;
   margin-right:7px;
}
.styleCheckbox input {
   cursor:pointer;
   filter:alpha(opacity=0);
   opacity:0; width:13px; height:13px;   
}

.styleRadio {
   cursor:pointer; padding:2px 0 10px 0;
   background:url(../imagens/layout/check_radio.gif) no-repeat;
}
.styleCheckbox {
   cursor:pointer; padding:0;
   background:url(../imagens/icones/checkbox.gif) no-repeat;
   width:13px; height:13px;
}

.styleRadio {
   background-position:0 -500px;
}
.styleCheckbox {
   background-position:0 0;
}

.inputRadioChecked {
   background-position:-503px -500px;
}
.inputCheckboxChecked {
   background-position:0 -87px;
}