// Holt Infos über den Navigator
var NS = (navigator.appName == "Netscape");
mac = navigator.appVersion.indexOf("Mac");
if (mac >= 0) mac = 1; else mac = 0;
IE4 = (document.all) ? true : false; 
NS4 = (document.layers) ?  true : false;
NS6a = document.getElementById;
if(NS6a && NS) NS6 = true; else NS6 = false;
if ((IE4) || (NS4) || (NS6)) dhtml=1;

// Referenz holen
function getElementRef(id)
{
	if (NS6) var prefix = "document.getElementById('" + id + "')";
	if (IE4) var prefix = "document.all." + id;
	if (NS4) var prefix = "document." + id;
	return eval(prefix);
}

function isSet(variable)
{
	return ((typeof(variable) != 'undefined') && (variable != undefined));
}

function sprintf() {
	if (!arguments || arguments.length < 1 ||!RegExp) { return; }
	var result = arguments[0];
	var regex = /([^%]*)%('.|0|\x20)?(-)?(\d+)?(\.\d+)?(%|b|c|d|u|f|o|s|x|X)(.*)/;
	var a = b = [], numSubstitutions = 0, numMatches = 0;
	while (a = regex.exec(result)) {
		var leftpart = a[1], pPad = a[2], pJustify = a[3], pMinLength = a[4];
		var pPrecision = a[5], pType = a[6], rightPart = a[7]; numMatches++;
		if (pType == '%') {
			subst = '%';
		} else {
			numSubstitutions++;
			if (numSubstitutions >= arguments.length) {
				alert('Error! Not enough function arguments (' +
					(arguments.length - 1) + ', excluding the string)\n' +
					'for the number of substitution parameters in string (' +
					numSubstitutions + ' so far).');
			}
			var param = arguments[numSubstitutions];
			var pad = '';
			if (pPad && pPad.substr(0,1) == "'") {
				pad = leftpart.substr(1,1);
			} else if (pPad) {
				pad = pPad;
			}
			var justifyRight = true;
			if (pJustify && pJustify === "-") justifyRight = false;
			var minLength = -1;
			if (pMinLength) minLength = parseInt(pMinLength);
			var precision = -1;
			if (pPrecision && pType == 'f') {
				precision = parseInt(pPrecision.substring(1));
			}
			var subst = param;
			switch (pType) {
				case 'b': subst = parseInt(param).toString(2); break;
				case 'c': subst = String.fromCharCode(parseInt(param)); break;
				case 'd': subst = parseInt(param)? parseInt(param) : 0; break;
				case 'u': subst = Math.abs(param); break;
				case 'f': subst = (precision > -1)?
					Math.round(parseFloat(param) * Math.pow(10, precision)) /
					Math.pow(10, precision) : parseFloat(param); break;
				case 'o': subst = parseInt(param).toString(8); break;
				case 's': subst = param; break;
				case 'x': subst = ('' + parseInt(param).toString(16)).toLowerCase(); break;
				case 'X': subst = ('' + parseInt(param).toString(16)).toUpperCase(); break;
			}
			var padLeft = minLength - subst.toString().length;
			if (padLeft > 0) {
				var arrTmp = new Array(padLeft+1);
				var padding = arrTmp.join(pad?pad:" ");
			} else {
				var padding = "";
			}
		}
		result = leftpart + padding + subst + rightPart;
	}
	return result;
}

function print_r(value, deep) {
	if(!deep) deep = 0;
	var result = "";
	var spaces = "";
	for(i = 0; i < deep; i++) spaces += "\t";
	if(value.constructor == Array) {
		result += "Array(\n";
		for(var key in value) {
			result += spaces + "\t[" + key + "] => " + print_r(value[key], deep + 1);
		}
		result +=  spaces + ")\n";
	} else if(value.constructor == Object) {
		result += "Object(\n";
		for(var key in value) {
			result += spaces + "\t[" + key + "] => " + print_r(value[key], deep + 1);
		}
		result +=  spaces + ")\n";
	} else {
		result += value + "\n";
	}
	return result;
}
// Init page update
//var requestAddr = 'load.php?name=Broadcast&file=OnAir_GetData';
var requestAddr = '/cms/modules/Broadcast/OnAir_GetData.php';
var onAirData = null;
var interval = 10;
var counter = interval;
var httpClient = null;
var timer = window.setInterval("checkUpdate()", 1000);
if(window.XMLHttpRequest) {
	httpClient = new XMLHttpRequest();
} else if(window.ActiveXObject) {
	httpClient = new ActiveXObject('Microsoft.XMLHTTP');
}
function checkUpdate() {
	if (counter < 0) {
		sendRequest();
		counter = interval;
	}
	getElementRef("song_playtime").innerHTML = (enableTimer ? "&nbsp;(Left&nbsp;" + getTimeString(playTime) + ")" : "");
	if(enableTimer && (playTime > 0)) playTime--; else playTime = 0;
	counter--;
}
function sendRequest() {
	try {
		if(isSet(httpClient)) {
			httpClient.open('GET', requestAddr, true);
			httpClient.onreadystatechange = onStateChange;
			httpClient.send(null);
		}
	}
	catch(e) {
	}
}
function onStateChange() {
	try {
		if(isSet(httpClient)) {
			if(httpClient.readyState == 4) {
				text = httpClient.responseText;
				if(isSet(text) && (text != '')) {
					temp = eval("(" + text + ")");
					//getElementRef("data").innerHTML = print_r(temp);
					if(isSet(temp)) {
						playTime = temp.song_playtime;
						if(onAirData == null || temp.md5 != onAirData.md5) {
							onAirData = temp;
							updatePage();
						}
					}
				}
			}
		}
	}
	catch(e) {
	}
}
function updatePage() {
	enableTimer = (onAirData.song_length > 0);
	getElementRef("song_image").src = imageDir + onAirData.song_image;
	getElementRef("song_type").innerHTML = (!enableTimer ? "<img border=0 class=onair_img_live src=\"modules/Broadcast/images/blind.png\" hspace=2 />" : "");
	getElementRef("song_artist").innerHTML = onAirData.song_artist;
	getElementRef("song_title").innerHTML = onAirData.song_title;
	getElementRef("song_playtime").innerHTML = (enableTimer ? "&nbsp;(Left&nbsp;" + getTimeString(playTime) + ")" : "");
	getElementRef("song_length").innerHTML = (enableTimer ? getTimeString(onAirData.song_length) : "");
	getElementRef("song_album").innerHTML = onAirData.song_album;
	getElementRef("song_infos").href = onAirData.song_infos;
	getElementRef("song_website").href = onAirData.song_website;
	getElementRef("song_playstart").innerHTML = onAirData.song_playstart;
	getElementRef("server_listeners").innerHTML = onAirData.server_listeners;
	getElementRef("server_comingup").innerHTML = onAirData.server_comingup;
	getElementRef("song_playcount").innerHTML = ((onAirData.song_playcount <= 1) ? "<img border=0 class=onair_img_new src=\"modules/Broadcast/images/blind.png\" hspace=2 />" : "");
	//getElementRef("song_rating1").src = "modules/Broadcast/images/rating_" + ((onAirData.song_rating > 0) ? "yellow" : "gray") + ".png";
	getElementRef("song_rating1").className = ((onAirData.song_rating > 0) ? "onair_img_rating_light" : "onair_img_rating_dark");
	getElementRef("song_rating2").className = ((onAirData.song_rating > 1) ? "onair_img_rating_light" : "onair_img_rating_dark");
	getElementRef("song_rating3").className = ((onAirData.song_rating > 2) ? "onair_img_rating_light" : "onair_img_rating_dark");
	getElementRef("song_rating4").className = ((onAirData.song_rating > 3) ? "onair_img_rating_light" : "onair_img_rating_dark");
	getElementRef("song_rating5").className = ((onAirData.song_rating > 4) ? "onair_img_rating_light" : "onair_img_rating_dark");
	getElementRef("song_vote1").href = "javascript:vote(1, " + onAirData.song_id + ");";
	getElementRef("song_vote2").href = "javascript:vote(2, " + onAirData.song_id + ");";
	getElementRef("song_vote3").href = "javascript:vote(3, " + onAirData.song_id + ");";
	getElementRef("song_vote4").href = "javascript:vote(4, " + onAirData.song_id + ");";
	getElementRef("song_vote5").href = "javascript:vote(5, " + onAirData.song_id + ");";
	//getElementRef("data").innerHTML = print_r(onAirData);
}
function getTimeString(value) {
	mm = Math.floor(value / 60);
	ss = Math.abs(value % 60);
	return sprintf("%02d&#39;%02d&#34;", mm, ss);
}