function CountryChange(DropDown,State,ZipReg,ZipRegEx){
	if(DropDown.value == 'us'){
		document.getElementById(State).disabled = false
		document.getElementById(State).value = 0
		ValidatorEnable(document.getElementById(ZipReg), true);  
		ValidatorEnable(document.getElementById(ZipRegEx), true); 
	}else{
		document.getElementById(State).value = 52
		document.getElementById(State).disabled = true
		ValidatorEnable(document.getElementById(ZipReg), false); 
		ValidatorEnable(document.getElementById(ZipRegEx), false); 
	}
}

function isNumericKey(e) {
    var k;
    document.all ? k = e.keyCode : k = e.which;
    return ((k > 47 && k < 58) || k == 8);
}
function extractNumeric(str) {
    return str.replace(/\D/g, "");
}