// JavaScript Document
var xmlHttp;

function zipLookup(fuseroot, zip, fldCity, fldState) {	
	if (trim(zip).length != 5 || !checkChars(zip, "0123456789")) return false;
	
	if (window.ActiveXObject)
		xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
	else if (window.XMLHttpRequest)
		xmlHttp = new XMLHttpRequest();

	if (xmlHttp != null) {
		xmlHttp.onreadystatechange = function(){processZipChange(fldCity, fldState)};
		xmlHttp.open("GET", fuseroot + 'includes/lookup/ziplookup.cfm?zip=' + zip, true);
		xmlHttp.send(null);
	} else {
//		alert('Your browser does not support XMLHTTP.');
	}
}   
   
function processZipChange(fldCity, fldState) {
	if (xmlHttp.readyState == 4) {
		if (xmlHttp.status == 200) {
			eval('var rtn = ' + xmlHttp.responseText);

			if (rtn.city.length > 0 && fldCity != '')
				fldCity.value = rtn.city;
			else if (fldCity != '')
				fldCity.value = '';
				
			if (rtn.state.length > 0 && fldState != '') {
				for (var i = 0; i < fldState.options.length; i++) {
					if (fldState.options[i].value == rtn.state) {
						fldState.selectedIndex = i;
						break;
					}
				}
				if (i == fldState.options.length) fldState.selectedIndex = 0;
			} else if (fldState != '')
				fldState.selectedIndex = 0;
		} else {
//			alert('There was a problem retrieving the XML data:\n' + xmlHttp.statusText);
		}
	}
}