function btd_app_enable(){

	document.getElementById("label_a").className = "light_text"; //Used for "Other" race/ethnicities
	document.getElementById("label_b").className = "light_text"; //Used for "Engineering" majors
	document.getElementById("label_c").className = "light_text"; //Used for "Other" majors
	document.getElementById("label_d").className = "light_text"; //Used for "Other" countries
	
	document.btd_app.per_resident.disabled = true;	
	document.btd_app.race_other.disabled = true;
	document.btd_app.major_other.disabled = true;
	document.btd_app.major_engineering.disabled = true;	
	document.btd_app.country_other.disabled = true;
	
	if(document.btd_app.citizen.value == "No"){
		document.btd_app.per_resident.disabled = false;
	}

	if(document.btd_app.race.value == "Other"){
		document.btd_app.race_other.disabled = false;
		document.getElementById("label_a").className = "dark_text";
	}
	
	if(document.btd_app.major.value == "Engineering"){
		document.btd_app.major_engineering.disabled = false;
		document.getElementById("label_b").className = "dark_text";		
	}
	if(document.btd_app.major.value == "Other"){
		document.btd_app.major_other.disabled = false;
		document.getElementById("label_c").className = "dark_text";		
	}
	if(document.btd_app.country.value == "Other"){

		document.btd_app.country_other.disabled = false;
		document.getElementById("label_d").className = "dark_text";				
	}
		
}

function btd_app_validation(){
	
	if(document.btd_app.fname.value == "" || document.btd_app.lname.value == "" || document.btd_app.email.value == ""){
		alert("Please make sure that you provide a first name, last name and email address");	
	}
	else{
		var conf = confirm("Are you sure you want to proceed with submission?");
		if(conf == 1){
			document.btd_app.submit();	
		}
	}
	
}