var jsReady = false;
var req;

var xDoc;
xDoc = loadXMLDoc("xml/videos.xml");


function isReady()
{
    return jsReady;
}

function pageInit()
{
    jsReady = true;
}

function thisMovie(movieName) {
	if (navigator.appName.indexOf("Microsoft") != -1) {
		return window[movieName];
    } else {
        return document[movieName];
    }
}

function asPlayVideo(vid) {
    thisMovie("hires").asPlayVideo(vid);
}

function jsAlert (str) {
	alert("" + str);
}

function loadXMLDoc(url) {
	req = false;
    // branch for native XMLHttpRequest object
    if(window.XMLHttpRequest && !(window.ActiveXObject)) {
    	try {
			req = new XMLHttpRequest();
        } catch(e) {
			req = false;
        }
    // branch for IE/Windows ActiveX version
    } else if(window.ActiveXObject) {
       	try {
        	req = new ActiveXObject("Msxml2.XMLHTTP");
      	} catch(e) {
        	try {
          		req = new ActiveXObject("Microsoft.XMLHTTP");
        	} catch(e) {
          		req = false;
        	}
		}
    }
	if(req) {
		//req.onreadystatechange = processReqChange; // syncronous (ajax???)
		req.open("GET", url, false); // asyncronous
		req.send("");
		lXml = req.responseXML;
		req = null;
		return lXml;
	} else {
		alert("Could not create XML object with your browser.");
		req = null;
		return -1;
	}
}

function processReqChange() {
    // only if req shows "loaded"
    if (req.readyState == 4) {
        // only if "OK"
        if (req.status == 200) {
            // ...processing statements go here...
        } else {
            alert("There was a problem retrieving the XML data:\n" + req.statusText);
        }
    }
}

function getNode(oXML, xPath) {
	// only return first node????
	if (window.ActiveXObject) {
		oXML.setProperty("SelectionLanguage","XPath"); 
		var nodes=oXML.selectNodes(xPath);
		var result=nodes[0];
	} else if (document.implementation && document.implementation.createDocument) {
		var nodes=document.evaluate(xPath, oXML, null, XPathResult.ANY_TYPE, null);
		var result=nodes.iterateNext();
	} else {
		alert('Your browser cannot handle this script');
		return -1;
	}
	return result;
}