// -------------------------------------------------------------------
// validateForm()
// -------------------------------------------------------------------
function validateForm(){
	
	// Verifies form variables are filled out and valid
	if(document.getElementById('firstName').value == "" ||
		document.getElementById('lastName').value == "" ||
		document.getElementById('email').value == "" || 
		document.getElementById('comment').value == ""){
		
		// Displays warning
		var message = "Ensure all required fields are entered. ";
		
		alert(message);
			
		return;
	}

	// Disables submit button
	document.getElementById("submitButton").disabled = true;
	
	// Submits
	document.applicationForm.submit();
}