function cDisplay(){
	a_args = cDisplay.arguments;
	for(var i=0;i<a_args.length;i++){a_items=a_args[i].split(",");document.getElementById(a_items[0]).style.display = a_items[1];}
}
function cVis(){
	a_args = cVis.arguments;
	for(var i=0;i<a_args.length;i++){a_items=a_args[i].split(",");document.getElementById(a_items[0]).style.visibility = a_items[1];}
}
function cb_getRadio(s_formid,s_radio){
	o_form = document.getElementById(s_formid);
	a_radio = eval("o_form."+s_radio);
	o_radio = a_radio[0];
	for(var i=0;i<a_radio.length;i++)if(a_radio[i].checked)o_radio = a_radio[i];
	return o_radio;
}
function cb_airDateType(o_radio){
	o_ul = o_radio.parentNode.parentNode;
	a_li = o_ul.getElementsByTagName("li")
	for(var i=0;i<a_li.length;i++)a_li[i].className="";
	o_radio.parentNode.className="typeselected";
	a_msgspan = document.getElementById("cb_typeselectmsgtxt").getElementsByTagName("span");
	for(var i=0;i<a_msgspan.length;i++)a_msgspan[i].style.display = "none";
	cDisplay(o_radio.value+",inline");
	switch(o_radio.value){
		case "exactDates":
			cDisplay("datedf,none","daterf,none","air_fromrowfd,none","air_torowfd,none");			
			cDisplay("datelt,inline","datert,inline","air_fromrowed,block","air_torowed,block","cbSubmitText,block","FHbutton,block");
			cVis("cb_air_nba,visible");
			document.getElementById("cb_nba_input").checked ? cDisplay('exactDatesCSA,inline','exactDatesnoCSA,none') : cDisplay('exactDatesCSA,none','exactDatesnoCSA,inline');
			document.getElementById("cbSubmitAirHP").className = "twobutton"
			cb_nearByAirports(document.getElementById("cb_nba_input")); 			
		break;
		case "plusMinusDates":
			cDisplay("datedf,inline","daterf,inline","air_fromrowed,block","air_torowed,block");
			cDisplay("datelt,none","datert,none","air_fromrowfd,none","air_torowfd,none","cbSubmitText,none","FHbutton,none");
			document.getElementById("cbSubmitAirHP").className = "onebutton" 
			cVis("cb_air_nba,hidden");
		break;
		case "flexibleDates":
			cDisplay("air_fromrowfd,block","air_torowfd,block","air_fromrowed,none","air_torowed,none","cbSubmitText,none","FHbutton,none");
			cVis("cb_air_nba,hidden");
			document.getElementById("cbSubmitAirHP").className = "onebutton" 
		break;
		default:
	}
}	
function cb_changeAirType(){
	o_dateTypeSelect = cb_getRadio("formair","dateTypeSelect");
	o_form = document.getElementById("formair");
	s_radio = "dateTypeSelect";
	a_radio = eval("o_form."+s_radio);	
	cDisplay("cb_multi,none","cb_rtow,block","cb_air_pmd,inline","cb_air_nba,block","air_torowed,block");
	cb_nearByAirports(document.getElementById("cb_nba_input"));
}
function cb_nearByAirports(o_check){
	document.getElementById("nearbymsg").style.display = (o_check.checked) ? "inline" : "none";
	document.getElementById("cb_air_pmd").style.display = (o_check.checked) ? "none" : "inline";
	document.getElementById("cb_air_fd").style.display = (o_check.checked) ? "none" : "inline";
	o_button = document.getElementById("FObutton");
	document.getElementById("cbSubmitAirHP").className = (o_check.checked) ?  "onebutton" : "twobutton";
	o_check.checked ? cDisplay("exactDatesCSA,inline","exactDatesnoCSA,none","cbSubmitText,none","FHbutton,none") : cDisplay("cbSubmitText,block","FHbutton,block","exactDatesCSA,none","exactDatesnoCSA,inline");
}
function switchEnv(){
	newenv = document.getElementById("environment")[document.getElementById("environment").selectedIndex].text;
	if(newenv.indexOf("belle")>-1)document.getElementById("snappy").disabled = false;
	else document.getElementById("snappy").disabled = true;
	document.getElementById("formair").action = newenv;
}
function setUpAir(){
	cb_nearByAirports(document.getElementById("cb_nba_input"));
	cb_airDateType(cb_getRadio("formair","dateTypeSelect"))
	childAges(document.getElementById("air_children"),"cbairchildages")
}