var requester = null;
var ismake_and_model = false;

function _onChange(id)
{	
	if (requester != null && requester.readyState != 0 && requester.readyState != 4)
		requester.abort();
	
	try {
		requester = new XMLHttpRequest();
	}
	catch (error) {
		requester = new ActiveXObject("Microsoft.XMLHTTP");
	}
	
	requester.onreadystatechange = onreadystatechange_onChange2;

	requester.open("GET", "ajax/models.php?action=models&id=" + id);
	requester.send(null);
}

function onreadystatechange_onChange2() {
	if (requester.readyState == 4) {
		if (requester.status == 200) {
			if (requester.responseText == 'error') {
				sendMessage("fail");
			}
			else {
				fillSelectBoxes2();
				//sendMessage("done");				
			}
		}
		else if (requester.status != 0) {
			alert("There was an error while retrieving the URL: " + requester.statusText);
		}
	}
	
	return true;
}

function fillSelectBoxes2() {
    var xmlDoc = requester.responseXML.documentElement;
//	alert(requester.responseText);
	
	
	// Set the pointer to TEAMS select box
	var selectTeams = document.getElementById('modelsID');
	
	// Get TEAMS nodes from XML
	var teamNodes = xmlDoc.getElementsByTagName("models");
	
	// If TEAMS not empty update the teams select box
	if (teamNodes.length > 0) {
		xTeams = xmlDoc.getElementsByTagName("model");
		
		// Remove all options
		selectTeams.options.length = 0;
		
		// Fill the TEAMS select box with teams
		for (i = 0; i < xTeams.length; i++) {
			
			var newOpt = document.createElement("OPTION");
			newOpt.value = "null";
			newOpt.text  = "null";
			
			var xteam = xTeams.item(i);
			for (j = 0; j < xteam.childNodes.length; j++) {
				var content = xteam.childNodes.item(j);
				if (content.childNodes.length > 0) {
					var data = content.childNodes.item(0);
					if (newOpt.value == "null") { newOpt.value = data.data; }
					else if (newOpt.text == "null") {newOpt.text = data.data; }
				}
			}
			
			try {
				selectTeams.options.add(newOpt, i);
			}
			catch (error) {
				selectTeams.options.add(newOpt, -1);
			}
		}
		
		if (selectTeams.options.length > 0)
			selectTeams.options[0].selected = true;
        
        if (ismake_and_model) {
            makeAndModelsSelect();
        }
        
		//sendMessage("done_teams");		
	}
}