// JavaScript Document


// Klassen tauschen
function KlassenTauschen(klasse_alt,klasse_neu)
{
  var obj=getElementsByClassName(klasse_alt);

  for(i=0;i<obj.length;i++)
  {
    obj[i].className=klasse_neu;
    /*obj[i].firstChild.nodeValue="Test mit Klasse "+klasse_neu;*/
  }
}

function getElementsByClassName(class_name)
{
  var all_obj,ret_obj=new Array(),j=0,teststr;

  if(document.all)all_obj=document.all;
  else if(document.getElementsByTagName && !document.all)
    all_obj=document.getElementsByTagName("*");

  for(i=0;i<all_obj.length;i++)
  {
    if(all_obj[i].className.indexOf(class_name)!=-1)
    {
      teststr=","+all_obj[i].className.split(" ").join(",")+",";
      if(teststr.indexOf(","+class_name+",")!=-1)
      {
        ret_obj[j]=all_obj[i];
        j++;
      }
    }
  }
  return ret_obj;
}

// Preloader
function clearPreloadPage()
{ //DOM
  if (document.getElementById)
  {
    document.getElementById('prepage1').style.visibility='hidden';
  }
  else
  {
    if (document.layers)
    { //NS4
      document.prepage1.visibility = 'hidden';
    }
    else
    { //IE4
      document.all.prepage1.style.visibility = 'hidden';
    }
  }
}