checkbox

[Dragoon_SC]

Si son dinamicos tendras que hacer un recorrido en javscript si no simplemente si seleccionas
Cine
<input type="checkbox" Onclick="javascript: checatodos()"> Todos
<input name ="playa" type="checkbox" > Playa
<input name = "montana" type="checkbox" > montana
<input name = "cine" type="checkbox" >Cine

<script>
function checatodo(){
document.form.playa.selected = true;
document.form.montana.selected = true;
document.form.cine.selected = true;}
</script>