No PO Boxes in Shipment Address Magento 1.9 - part 2

Validation.add('validate-pobox','We cannot ship to your P.O. Please check the button to ship to a different address.',function(field_value) {
    // setup a regex var for pretty much every possibility of PO box...
    var regex = /[P|p]*(OST|ost)*\.*\s*[O|o|0]*(ffice|FFICE)*\.*\s*[B|b][O|o|0][X|x]/;
    // if the field_value contains PO Box

    		if(field_value.match(regex))
		{
 			if (document.getElementById('billing:use_for_shipping_yes').checked == true)
 			{
        		return false;
    			}
    		return true;
		}
		else
		{
		if(!field_value.match(regex))
		 	{
			return true;
			}
		}
});

Validation.add('validate-pobox2','We cannot ship to your P.O. Please check the button to ship to a different address.',function(field_value) {
    // setup a regex var for pretty much every possibility of PO box...
    var regex2 = /[P|p]*(OST|ost)*\.*\s*[O|o|0]*(ffice|FFICE)*\.*\s*[B|b][O|o|0][X|x]/;
    // if the field_value contains PO Box

    		if(field_value.match(regex2))
		{
 			if (document.getElementById('billing:use_for_shipping_yes').checked == true)
 			{
        		return false;
    			}
    		return true;
		}
		else
		{
		if(!field_value.match(regex2))
		 	{
			return true;
			}
		}
});