var syear = 2010;
var adon = 0;

function subjselect(option){
	if (option.options[option.selectedIndex].value == "na") {
	
			document.getElementById('main').className = "hide";
			document.getElementById('birthday').className = "hide";
			document.getElementById('time').className = "hide";
			document.getElementById('tellus').className = "hide";
			document.getElementById('cats').className = "show";
			document.sendit.body.value = "";
			adon = 0;
	
	} else {

			document.getElementById('main').className = "show";
			document.getElementById('birthday').className = "hide";
			document.getElementById('time').className = "hide";
			document.getElementById('tellus').className = "show";
			document.getElementById('cats').className = "show";
			document.sendit.body.value = "";
			adon = 0;
				var subselvar = option.options[option.selectedIndex].value;
	document.sendit.subjectsel.value = subselvar;
}


}

function subjectF(option) {
	
	
	var subval = option.options[option.selectedIndex].value;
	
if ( subval == "Advertising") {
			document.getElementById('main').className = "hide";
			document.getElementById('birthday').className = "show";
			document.getElementById('time').className = "hide";
			document.getElementById('tellus').className = "hide";
			document.getElementById('cats').className = "hide";
			document.sendit.body.value = "";
			showcat(subval);
			hidecats();
			
			adon = 0; //used later on in the submit function, so it knows to add the extra fields
	} else if ( subval == "na") {
			document.getElementById('main').className = "hide";
			document.getElementById('birthday').className = "hide";
			document.getElementById('time').className = "hide";
			document.getElementById('tellus').className = "hide";
			document.getElementById('cats').className = "hide";
			document.sendit.body.value = "";
			hidecats();
			//showcat(subval);
			adon = 0;
		
	} else {
			
			
			document.getElementById('main').className = "hide";
			document.getElementById('birthday').className = "hide";
			document.getElementById('time').className = "hide";
			document.getElementById('tellus').className = "hide";
			document.getElementById('cats').className = "show";
			document.sendit.body.value = "";
			hidecats();
			showcat(subval);
			adon = 0;
	}
	
}

function hidecats() {
				document.getElementById('cat_geninfo').className = "hide";
				document.getElementById('cat_games').className = "hide";
				document.getElementById('cat_onlinevid').className = "hide";
				document.getElementById('cat_prog').className = "hide";
				document.getElementById('cat_adver').className = "hide";
}

function showcat(subval){
if (subval == "General Information") {
	document.getElementById('cat_geninfo').className = "show";
	document.sendit.subjectsel.value = "Charitable Donations";

} else if (subval == "Games") {
	document.getElementById('cat_games').className = "show";
	document.sendit.subjectsel.value = "FusionFall";
	
} else if (subval == "Online Video") {
	document.getElementById('cat_onlinevid').className = "show";
	document.sendit.subjectsel.value = "Other Video Questions";
	
} else if (subval =="Programming") {
	document.getElementById('cat_prog').className = "show";
	document.sendit.subjectsel.value = "6teen";
	
} else if (subval == "Advertising") { 
	document.getElementById('cat_adver').className = "hide";
	document.sendit.subjectsel.value = "On-Air (commercials)";
}


}


function bday(option){
	var subyear = option.options[option.selectedIndex].value;
	
	if (subyear == "Before 1969") {
		var sage = 20;
	}else {
		var sage = syear - subyear;
	}
	
	if (sage >= 13) {
			document.sendit.body.value = "";
			document.getElementById('main').className = "show";
			document.getElementById('birthday').className = "hide";
			document.getElementById('time').className = "show";
			document.getElementById('tellus').className = "show";
			document.getElementById('cats').className = "show";
			hidecats();
			document.getElementById('cat_adver').className = "show";
			adon = 1;
			
	} else {
			document.sendit.body.value = "";
			document.getElementById('main').className = "show";
			document.getElementById('birthday').className = "hide";
			document.getElementById('time').className = "hide";
			document.getElementById('tellus').className = "show";	
			document.getElementById('cats').className = "show";
			hidecats();
			document.getElementById('cat_adver').className = "show";
	}
}


function senditf() {
  validRegExp = /^[^@]+@[^@]+.[a-z]{2,}$/i;

 if (document.sendit.name.value == "" ) {
	 alert("Please enter your name");
 } else if (document.sendit.email.value == "") {
	 alert("Please enter your email");
 } else if (document.sendit.email.value.search(validRegExp) == -1) {
      alert('A valid e-mail address is required.');
 } else if (document.sendit.body.value == "") {
	 alert("Please enter your comments");
 } else { 

		if (adon == 0) {
			document.sendit.submit();
		} else if (adon == 1) {
			document.sendit.body.value += "\n \n City: " + document.sendit.city.value + " State: "+ document.sendit.state.value + "\n";
			document.sendit.body.value += "Ad Seen: " + document.sendit.sa_month.value + " " + document.sendit.sa_day.value + ", " + document.sendit.sa_year.value + "\n";
			document.sendit.body.value += "Hour: " + document.sendit.sa_hour.value + ":" + document.sendit.sa_min.value + " " + document.sendit.sa_am.value + "\n" + document.sendit.sa_tz.value;
			document.sendit.submit();
		}
 }

}