function validateIns(f){
	if(f.zipcode.value == ''){
		alert('Please enter your zipcode.');
		f.zipcode.focus();
		return false;
	} else if(!validZIP(f.zipcode.value)){
		alert('Please enter valid 5-digits zipcode.');
		f.zipcode.focus();
		return false;
	} else if(!existingZIP(f.zipcode.value)){
		alert('This zipcode does not exist.');
		f.zipcode.focus();
		return false;
	}

	var state = ZIPtoState(f.zipcode.value);

	var ni_var1 = f.ni_var1.value;
		

	if(window.location.host == 'individualhealthinsurance'){
		document.location = 'http://individualhealthinsurance/healthinsurancequote.php?zipcode=' + f.zipcode.value + '&ni_var1=' + ni_var1;
	} else {
		document.location = 'http://www.individualhealthinsurance.org/healthinsurancequote.php?zipcode=' + f.zipcode.value + '&ni_var1=' + ni_var1;
	}
	
	return false;
}