function checkForm()
{
	var form = document.buy
	var form_status = true
	var missing_options = new Array()
	
	error_message = document.getElementById('errors')
	if (error_message) {
		form.removeChild(error_message)
	}
	

		for(i=0;i<form.elements.length; i++) {
			select_box = form.elements[i]
			select_box.setAttribute("class", "")
			if (select_box.selectedIndex == 0) {
				select_box.setAttribute("class", "error");
				option_name = select_box.name.replace( /vwattr\d*_/, '')
				missing_options = missing_options.concat(option_name)			
				form_status = false;
			}
		}
		if(form_status) {
			form_status = true
		}
		else {
			message_start = 'Please Choose a '
	
			message = document.createElement('div');
			message.setAttribute('id', 'errors');
			if (missing_options.length > 1)	{
				message.innerHTML = message_start.concat(missing_options.join(', ').replace(/, \w*$/, ' & ').concat(missing_options[missing_options.length-1]))
			}
			 else	{
				message.innerHTML = message_start.concat(missing_options.join(', '))
			}
			form.appendChild(message);
		}
		return form_status;

}

function radio_button_checker()
{
// set var radio_choice to false
var radio_choice = false;

// Loop from zero to the one minus the number of radio button selections
for (counter = 0; counter < radio_form.radio_button.length; counter++)
{
// If a radio button has been selected it will return true
// (If not it will return false)
if (radio_form.radio_button[counter].checked)
radio_choice = true; 
}

if (!radio_choice)
{
// If there were no selections made display an alert box 
alert("Please select a letter.")
return (false);
}
return (true);
}