/**
 *
 * @access public
 * @return void
 **/
function radioChange(){
	var elem = document.getElementById("radio");
	if(elem.value == "2.4"){
		document.getElementById("freq1").setAttribute("disabled", true);
		document.getElementById("freq2").setAttribute("disabled", true);
		document.getElementById("freq3").setAttribute("disabled", true);
		document.getElementById("freq1").value="-";
		document.getElementById("freq2").value="-";
		document.getElementById("freq3").value="-";
	}else{
		document.getElementById("freq1").removeAttribute("disabled");
		document.getElementById("freq2").removeAttribute("disabled");
		document.getElementById("freq3").removeAttribute("disabled");
		document.getElementById("freq1").value="";
		document.getElementById("freq2").value="";
		document.getElementById("freq3").value="";
	}
}