[`p r o x y]

пример:

window.onload = function(){
	var aRadio = document.getElementsByTagName('input');
	for (var i=0; i < aRadio.length; i++){
		if (aRadio[i].type != 'radio') continue;
		//if (aRadio[i].value == 0) aRadio[i].checked = true;
		//if (aRadio[i].value == -1) aRadio[i].checked = true;
		if (aRadio[i].value == 1) aRadio[i].checked = true;
	}
}