// thanx to ALA
// http://www.alistapart.com/articles/alternate/
function setActiveStyleSheet(title) {
    var i, a, main;
       for (i = 0; (a = document.getElementsByTagName("link")[i]); i++) {
        if (a.getAttribute("rel").indexOf("style") != -1
            && a.getAttribute("title")) {
            a.disabled = true;
            if (a.getAttribute("title") == title)
                a.disabled = false;
        }
    }
}

function getWindowWidth() {
    if (window.innerWidth) {
        return window.innerWidth;
    } else if (document.documentElement
       && document.documentElement.clientWidth != 0) {
        return document.documentElement.clientWidth;
    } else if (document.body) {
        return document.body.clientWidth;
    }
    return 0;
}

var sheet = false;
var init = false;
function checkWindowSize() {
    var ws = getWindowWidth();
    if (ws >= 1100 && (!sheet || !init)) {
        setActiveStyleSheet('newsr');
        sheet = true;
        init = true;
    }
    if (ws < 1100 && (sheet || !init)) {
        setActiveStyleSheet('newsb');
        sheet = false;
        recalculateItemList();
        init = true;
    }
}
function recalculateItemList() {
    var heights = new Array();
    var list = document.getElementById('topicList');
    var childNodesLen = list.childNodes.length;
    for (var i = 0; i < childNodesLen; i++) {
        var node = list.childNodes[i];
        if (node.nodeName == "DD") {
            heights.push(node.offsetHeight);
        }
    }
    var maxwert = 0;
    for (a in heights) {
        maxwert = Math.max(maxwert, heights[a]);
    }

    for (var i = 0; i < childNodesLen; i++) {
        var node = list.childNodes[i];
        if (node.nodeName == "DD") {
            node.style.height = maxwert + "px";
        }
    }
}

function checkFormFilter(form) {
    var filter = document.forms['filterpref'].filter;
    for (i = 0; i < filter.length; i++) {
        if (filter[i].checked == true) {
            form.filter.value = filter[i].value;
            break;
        }
    }
    return true;
}

// thanks to bill. no idea yet to handle multiple submit-buttons within a form

// quick and dirty!

function checkFormAnchor(anchor) {
    var aFilter;
    var url = anchor.href;
    var targets = url.split("?");
    var params = targets[1].split("&");
    params.shift();
    var filter = document.forms['filterpref'].filter;
    for (i = 0; i < filter.length; i++) {
        if (filter[i].checked == true) {
            aFilter = filter[i].value;
            break;
        }
    }
    var target = targets[0] + "?filter=" + aFilter + "&" + params.join("&");
    anchor.href = target;
    return;
}

function displayLayer(which, button) {
    var tabs = document.getElementById('detmenu');
    var tabsChildNodesLength = tabs.childNodes.length;
    for (var i = 0; i < tabsChildNodesLength; i++) {
        var tab = tabs.childNodes[i];
        if (tab.nodeName == "LI") {
            tab.className = tab.className.replace("active", "normal");
            if (tab.firstChild.nodeName == "A") {
                tab.firstChild.className = tab.firstChild.className.replace(
                   "active", "normal");
            }
        }
    }
    button.className = button.className.replace("normal", "active");
    button.parentNode.className = button.parentNode.className.replace("normal",
        "active");
    button.blur();
    var lay = document.getElementById(which);
    var wrapper = document.getElementById('detailsContentWrapper');
    var childNodesLength = wrapper.childNodes.length;
    for (var i = 0; i < childNodesLength; i++) {
        var node = wrapper.childNodes[i];
        if (node.nodeName == "DIV") {
            node.style.display = 'none';
        }
    }
    lay.style.display = 'block';
}

function msf_open(movie) {
    msf_attr = "width="
    + screen.width
    + ",height="
    + screen.height
    + ",left=1,top=1,scrollbars=0,resizable=0,status=0,toolbar=0,menubar=0,location=0";
    F2 = window.open("http://pressetv.insider.tv/webtv/sendung/" + movie,
        "Desktop", msf_attr);
}
onload = checkWindowSize;
onresize = checkWindowSize;

/**
 * Common Presskit stuff
 * 
 * @type {}
 */
presskit = {
    /**
	 * Flash Handling
	 * 
	 * @type {object}
	 */
    flash : {
		
        currentPlayerId: 0,
		
        /**
		 * 
		 * @return {array} of flashplayer objects
		 */
        getAllAudioPlayers : function() {
            var objs = document.getElementsByTagName('object');
            var flashPlayers = new Array();
            var counter = 0;
            for (var i = 0; i < objs.length; i++) {
                if (objs[i].className && objs[i].className == 'audioplayer_object') {
                    flashPlayers[counter] = objs[i];
                    counter++;
                }
            }
            return flashPlayers;
        },

        /**
		 * called by presskit_flash_resetOtherPlayers resets all flash audio
		 * players except for the one that sent tha called
		 * presskit_flash_resetOtherPlayers which is the current playing one
		 * 
		 * @param {int} exceptForPlayerId
		 */
        resetAllFlashPlayersExceptFor : function(exceptForPlayerId) {
            var players = this.getAllAudioPlayers();
            for (var i = 0; i < players.length; i++) {
                var playerId = players[i].id.split('_')[2];
                if (exceptForPlayerId != playerId) {
            /**
					var obj2 = swfobject.getObjectById("audioplayer_object_"+playerId);
					alert("swfobject.getObjectById: "+obj2.showBox+" "+obj2.stopAudio);
					obj2.showBox();
					obj2.stopAudio();
					**/
            }
            }
        },
		
        /**
		 * get the id of current player
		 * @return {int}
		 */
        getCurrentPlayerId: function() {
            return this.currentPlayerId;
        },
		
        /**
		 * set the id of the current audioplayer
		 * @param {int} playerId
		 */
        setCurrentPlayerId: function(playerId) {
            this.currentPlayerId = playerId;
        }
    }
};

function presskit_flash_resetOtherPlayers(exceptForId) {
    presskit.flash.resetAllFlashPlayersExceptFor(exceptForId);
// alert('Play gedrückt bei '+exceptForId);
}