function clearField(obj) {
	if (obj.defaultValue==obj.value) obj.value = '';
}

function chooseCountry(requestedData,objectID) {
	fetchData('dataPage.php',requestedData,objectID);
}

function filterData(pageRequest,objectID){
	if (pageRequest.readyState == 4 && (pageRequest.status==200 || window.location.href.indexOf("http")==-1)) {
		var object = document.getElementById(objectID);
		object.options.length = 0;
		if(pageRequest.responseText != '') {
			var arrSecondaryData = pageRequest.responseText.split(',');
			for(i = 0; i < arrSecondaryData.length; i++) {
				if(arrSecondaryData[i] != '')
					object.options[object.options.length] = new Option(arrSecondaryData[i], arrSecondaryData[i]);
}}}}