// Warchild JavaScript Document - Image Viewer Function (Large)
// Authors: Pablo Mellognio / Adrian Busscheart
// Email: pablo@socimedia.com / adrian@socimedia.com

///// TRACKS - IMAGE VIEWER FUNCTION \\\\\\

    var tracks_http_request = false;

    var initializeCount = 0;
    var autoDiv = 1;
    var activeDiv = 0;

	var TRACKID;
	var LINKIMG;
	var TITLE;
	var SHORTCOPY;

	function tracks_makeRequest(url) {

		tracks_http_request = false;
        
		if (window.XMLHttpRequest) { // Mozilla, Safari,...
			tracks_http_request = new XMLHttpRequest();
			if (tracks_http_request.overrideMimeType) {
				tracks_http_request.overrideMimeType('text/xml');
			}
		} else if (window.ActiveXObject) { // IE
			try {
				tracks_http_request = new ActiveXObject("Msxml2.XMLHTTP");
			} catch (e) {
				try {
				tracks_http_request = new ActiveXObject("Microsoft.XMLHTTP");
				} catch (e) {}
			}
		}

		if (!tracks_http_request) {
			alert('Giving up :( Cannot create an XMLHTTP instance');
			return false;
		}
		
		tracks_http_request.onreadystatechange = setContentsTracks;
		tracks_http_request.open('GET', url, true);
		tracks_http_request.send(null);

	}
	
    function setupTracks(){
        tracks_makeRequest("getTracks.aspx");
    }
    
    function refreshTracksPlayer(){

        document.getElementById("tracks_menu").innerHTML = "<a href=\"music_tracks_selected.aspx?id=" + TRACKID + "\"><img src=\"images/music/tracks/" + LINKIMG + "\" alt=\"\" border=\"0\" /></a>";
        document.getElementById("tracks_menutext").innerHTML = "<p>&nbsp;</p><p><span class=\"typeheading\">" + TITLE + "</span></p><p>" + SHORTCOPY + "</p><p><a href=\"music_tracks_selected.aspx?id=" + TRACKID + "\"> Read More...</a></p><p>&nbsp;</p>";
    }
	
	function setContentsTracks() {
		if (tracks_http_request.readyState == 4) {
			if (tracks_http_request.status == 200) {
			  
			    var RESPONSE = String(tracks_http_request.responseText);
			    var RETURNED = RESPONSE.split("|");
			    
			    TRACKID = RETURNED[0];
			    LINKIMG = RETURNED[1];
			    TITLE = RETURNED[2];
			    SHORTCOPY = RETURNED[3];
			    
			    refreshTracksPlayer();
			    
			} else {
				alert('There was a problem with the request.');
			}
		}
	} 
	
	function changeTracksDiv() {
	    changeTrack('next');
    }

	function changeTrack(action) {
        tracks_makeRequest("getTracks.aspx?id=" + TRACKID + "&action=" + action );
    }
    
    function changeTrackJump(action, id) {
        tracks_makeRequest("getTracks.aspx?id=" + id + "&action=" + action );
    }