function cascadeCountry(value) {
	//alert('value:'+value);
	if (value != '') {
	    http.open('get', 'cascade_sign.php?a=country&v=' + value );
	    document.getElementById('txtstateprovince').innerHTML = "  " + loadingTag;
	    http.onreadystatechange = handleResponse;
	    http.send(null);
	}
}

function cascadeState(value,v1) {
	//alert('value:'+value);
	//alert('v1:'+v1);
    http.open('get', 'cascade_sign.php?a=state&v=' + value  + '&v1=' + v1);
    //http.setRequestHeader("Content-Type", "text/xml; charset=iso-8859-1");
    document.getElementById('txtcity').innerHTML="  "+loadingTag;
    http.onreadystatechange = handleResponse;
    http.send(null);
}

function cascadeCity(value,v1,v2) {
	//alert('value:'+value);
	//alert('v1:'+v1);
	//alert('v2:'+v2);

    http.open('get', 'cascade_sign.php?a=city&v=' + value + '&v1=' + v1 + '&v2=' + v2);
    document.getElementById('txtzip').innerHTML=value;
    //http.onreadystatechange = handleResponse;
    //http.send(null);
}