document.regForm.std3.options.length = 1;
document.regForm.std3.options[document.regForm.std3.options.length] = new Option("Business", "Business");
document.regForm.std3.options[document.regForm.std3.options.length] = new Option("Consumers", "Consumers");
document.regForm.std3.options[document.regForm.std3.options.length] = new Option("Both", "Both");