//mouseover function for graphic links
function showLinkHilite(whichImgObj){
  whichImgObj.src = whichImgObj.onimg.src;
}

//mouseout function for graphic links
function resetLinkHilite(whichImgObj){
  whichImgObj.src = whichImgObj.offimg.src;
}

//constructor for image objects of graphic links
function createGraphicLink(whichImg,lowsrc,hisrc){
  //erzeugen der mouseover-Images
  if(!whichImg.counter){
    whichImg.counter = 1;
    whichImg.offimg = new Image();
    whichImg.offimg.src = lowsrc;
    whichImg.onimg = new Image();
    whichImg.onimg.src = hisrc;
    }
}

function nav_part1_OnMouseOver(element) {
  element.className = "nav_part_on";
}

function nav_part1_OnMouseOut(element) {
  element.className = "nav_part_off";
}


/**
 *  toggles the display of an html-element between 'none' and 'block'
 *  @param id id of the element to be toggled
 */
function toggle_record(theId) {

  var displayVal;

  // get display attribute
  if (document.all && document.all[theId].style.getAttribute) {
    displayVal = document.all[theId].style.getAttribute("display", "false");
  } else if (document.getElementById) {
    displayVal = document.getElementById(theId).style.display;
  } else{
    return;
  }

  // toggle
  if(displayVal.indexOf('none')<0){
    displayVal = 'none';
  }else{
    displayVal = 'block';
  }

  // apply
  if (document.all && document.all[theId].style.getAttribute) {
    document.all[theId].style.display = displayVal;
  } else if (document.getElementById) {
    document.getElementById(theId).style.display = displayVal;
  }
}


//*********************************************************************
//          Bildwechsel, Ein- und Ausblenden der Layers
//*********************************************************************

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_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];
    }
}

function MM_findObj(n, d) {  //v4.0
  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 && document.getElementById) x=document.getElementById(n);return x;

}

function MM_showHideLayers() { //v3.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) {
      v=args[i+2];
      if (obj.style) {
        obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v;
      }
      obj.visibility=v;
    }
}