function checkBrochureForm() {
	if(document.brochures.br_main.checked == 0
	&& document.brochures.br_pricelist.checked == 0
	&& document.brochures.br_vitality.checked == 0
	&& document.brochures.br_urbane.checked == 0){
		alert("Please select at least one brochure before continuing.");
		return false;
	}
	else {
		return true;	
	}
}