/*-----------------------------------------------------------
Bildwechsel Hauptnavigation mit Preload
    ---------------------------------------------------------*/
function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

self.onLoad=MM_preloadImages(
image_path + 'nav_home_on.gif',
image_path + 'nav_presse_on.gif',
image_path + 'nav_job_karriere_on.gif',
image_path + 'nav_unternehmen_on.gif',
image_path + 'nav_geschaeftsfelder_on.gif',
image_path + 'nav_engagement_on.gif'
)


/*-----------------------------------------------------------
    Toggles element's display value
    Input: any number of element id's
    Output: none 
    ---------------------------------------------------------*/
function toggleDisp() {
    for (var i=0;i<arguments.length;i++) {
        var d = $(arguments[i]);
        if (d.style.display == 'none')
            d.style.display = 'block';
        else
            d.style.display = 'none';
    }
}
/*-----------------------------------------------------------
    Toggles tabs - Closes any open tabs, and then opens current tab
    Input:        1.The number of the current tab
                    2.The number of tabs
                    3.(optional)The number of the tab to leave open
                    4.(optional)Pass in true or false whether or not to animate the open/close of the tabs
    Output: none 
    ---------------------------------------------------------*/
function toggleTab(num,numelems,opennum,animate) {
    if ($('tabContent'+num).style.display == 'none') {
        for (var i=1; i<=numelems; i++) {
            if ((opennum == null) || (opennum != i)) {
                var temph = 'tabHeader'+i;
                var h = $(temph);
//                if (!h) {
//                    var h = $('head_on');
//                    h.id = temph;
//                }
//                h.style.color = '#517c9f';

                var tempc = 'tabContent'+i;
                var c = $(tempc);
                if(c.style.display != 'none') {
                    if (animate || typeof animate == 'undefined')
                        Effect.toggle(tempc,'appear',{duration:0.2, queue:{scope:'menus', limit: 3}});
                    else
                        toggleDisp(tempc);
                }
            }
        }
//        var h = $('tabHeader'+num);
//        if (h)
//        h.id = 'head_on';
//        h.blur();
//        var c = $('tabContent'+num);
//        c.style.marginTop = '2px';

        var x = $('tabHeader'+num);
//        x.style.color = '#dd9618';

        if (animate || typeof animate == 'undefined') {
            Effect.toggle('tabContent'+num,'appear',{duration:0.2, queue:{scope:'menus', position:'end', limit: 3}});
        } else {
            toggleDisp('tabContent'+num);
        }
    }
}

function hideSubTab(count) {
  for(var i=1;i<=count;i++) {
    x = document.getElementById('subTab'+i).style;
    x.display = 'none';
  }
}
function showSubTab(num,count) {
  hideSubTab(count);
  x = document.getElementById('subTab'+num).style;
  x.display = 'block';
}