// JavaScript Document

var oldNav = "";
var activeNav = "";
var oldEntryBottom = "";
var oldEntryImgOn = "";
var oldEntryImgOff = "";
var oTimeout;
var oTimeoutTop;

String.prototype.trim = function() {
	return this.replace(/^\s+|\s+$/g,"");
}

function writeBreak (c) {

    if (c >= 5) {
       document.write ('<div class="referenceBreak"></div>');
       c = 0;
    }
    return c+1;
}

function writeCategory (oldCat, actCat) {

    if (oldCat.trim() != actCat.trim()) {
       document.write('</ul><b>' + actCat + '</b><ul style="margin-top: 5px">');
    }
    return actCat;
}

function swapNavi(id, active, depth) {

    window.clearTimeout(oTimeout);
    if (active)
       activeNav = "subnav" + id;

    if (depth > 1) // popups nur in hauptebene 
       return;

    if (id == 10) {
       if (oldNav != "") {
          document.getElementById(oldNav).style.display = 'none';
       }
       return;
    }
    id = "subnav" + id;
    if (oldNav != "")
       document.getElementById(oldNav).style.display = 'none';
    if (activeNav != "")
       document.getElementById(activeNav).style.display = 'none';
    document.getElementById(id).style.display = 'block';
    oldNav = id;
}

function setClearNavi(id, depth) {

    if (depth == 1)
       return;
    oTimeout = window.setTimeout("clearNavi();", 500);
}

function stayNavi() {

    window.clearTimeout(oTimeout);
}

function clearNavi() {

    if (oldNav != "") {
       document.getElementById(oldNav).style.display = 'none';
       oldNav = "";    
    }

    if (activeNav != "" && activeNav != "subnav5" && activeNav != "subnav10") // für NEWS nicht auf aktive Subnav zurückschalten
          document.getElementById(activeNav).style.display = 'block';
}

function setClearEntry() {

    oTimeoutTop = window.setTimeout("clearEntry();", 500);
}

function clearEntry() {

    if (oldEntryImgOn != "") {
       document.getElementById(oldEntryImgOn).style.display = 'none';
       document.getElementById(oldEntryImgOff).style.display = 'inline';
       document.getElementById(oldEntryBottom).style.color = '#464c53';
       document.getElementById("referenceCaption").innerHTML = "";
    }
}

function swapEntry(id, caption) {

    window.clearTimeout(oTimeoutTop);
    txt = "entryBottom" + id;
    imgOn = "entryTopImageOn" + id;
    imgOff = "entryTopImageOff" + id;

    if (oldEntryBottom != "") {
       document.getElementById(oldEntryBottom).style.color = '#464c53';
       document.getElementById(oldEntryImgOn).style.display = 'none';
       document.getElementById(oldEntryImgOff).style.display = 'inline';
    }

    document.getElementById(txt).style.color = '#EA592C';
    document.getElementById(imgOn).style.display = 'inline';
    document.getElementById(imgOff).style.display = 'none';
    document.getElementById("referenceCaption").innerHTML = caption;
    oldEntryBottom = txt;
    oldEntryImgOn = imgOn;
    oldEntryImgOff = imgOff;
}