var ua=navigator.userAgent.toLowerCase();
var fading_speed = 150;
var refresh_time = 4000;
var ref_pic = new Array("./fileadmin/Images/referenzen/aldi-nord_107x74.jpg","./fileadmin/Images/referenzen/brenntag_107x74.jpg","./fileadmin/Images/referenzen/citibank_107x74.jpg","./fileadmin/Images/referenzen/betzold_107x74.jpg","./fileadmin/Images/referenzen/backwinkel_107x74.jpg","./fileadmin/Images/referenzen/schaefer-shop_107x74.jpg","./fileadmin/Images/referenzen/meinberger_107x74.jpg","./fileadmin/Images/referenzen/komba_107x74.jpg","./fileadmin/Images/referenzen/photographie_107x74.jpg","./fileadmin/Images/referenzen/debitel_107x74.jpg","./fileadmin/Images/referenzen/show.php","./fileadmin/Images/referenzen/bhw_107x74.jpg","./fileadmin/Images/referenzen/wapme-group_107x74.jpg","./fileadmin/Images/referenzen/opel_107x74.jpg","./fileadmin/Images/referenzen/uniklinik-essen_107x74.jpg","./fileadmin/Images/referenzen/newa_107x74.jpg","./fileadmin/Images/referenzen/telegate_107x74.jpg","./fileadmin/Images/referenzen/tvn_107x74.jpg","./fileadmin/Images/referenzen/hannover-messe_107x74.jpg","./fileadmin/Images/referenzen/hs_107x74.jpg","./fileadmin/Images/referenzen/bruker_107x74.jpg","./fileadmin/Images/referenzen/reichelt_107x74.jpg","./fileadmin/Images/referenzen/dental-m_107x74.jpg","./fileadmin/Images/referenzen/dkv_107x74.jpg","./fileadmin/Images/referenzen/victoria_107x74.jpg","./fileadmin/Images/referenzen/prokom_107x74.jpg","./fileadmin/Images/referenzen/herbertz_107x74.jpg","./fileadmin/Images/referenzen/handelsblatt_107x74.jpg","./fileadmin/Images/referenzen/hettich_107x74.jpg","./fileadmin/Images/referenzen/timpemock_107x74.jpg","./fileadmin/Images/referenzen/demedis_107x74.jpg","./fileadmin/Images/referenzen/tui_107x74.jpg","./fileadmin/Images/referenzen/bmw_107x74.jpg","./fileadmin/Images/referenzen/ford_107x74.jpg","./fileadmin/Images/referenzen/aral_107x74.jpg","./fileadmin/Images/referenzen/ferien_107x74.jpg","./fileadmin/Images/referenzen/nrw_107x74.jpg","./fileadmin/Images/referenzen/motoport_107x74.jpg","./fileadmin/Images/referenzen/sternefeld_107x74.jpg","./fileadmin/Images/referenzen/pernod_107x74.jpg","./fileadmin/Images/referenzen/vodafone_107x74.jpg","./fileadmin/Images/referenzen/sibauspar_107x74.jpg","./fileadmin/Images/referenzen/swd_107x74.jpg","./fileadmin/Images/referenzen/diebels_107x74.jpg","./fileadmin/Images/referenzen/vorwerk_107x74.jpg","./fileadmin/Images/referenzen/kleine_107x74.jpg","./fileadmin/Images/referenzen/login_107x74.jpg","./fileadmin/Images/referenzen/quentia_107x74.jpg","./fileadmin/Images/referenzen/wuerth_107x74.jpg","./fileadmin/Images/referenzen/setron_107x74.jpg","./fileadmin/Images/referenzen/mwdental_107x74.jpg","./fileadmin/Images/referenzen/akzonobel_107x74.jpg","./fileadmin/Images/referenzen/postnova_107x74.jpg","./fileadmin/Images/referenzen/gz_107x74.jpg","./fileadmin/Images/referenzen/itellium-karstadt.jpg","./fileadmin/Images/referenzen/lufthansa_107x74.jpg","./fileadmin/Images/referenzen/haneu_107x74.jpg","./fileadmin/Images/referenzen/arag_107x74.jpg","./fileadmin/Images/referenzen/austrodent_107x74.jpg","./fileadmin/Images/referenzen/hallopizza_107x74.jpg","./fileadmin/Images/referenzen/koelnmesse_107x74.jpg","./fileadmin/Images/referenzen/ids_107x74.jpg","./fileadmin/Images/referenzen/eplus_107x74.jpg","./fileadmin/Images/referenzen/mildenberger_107x74.jpg","./fileadmin/Images/referenzen/henkel_107x74.jpg","./fileadmin/Images/referenzen/fsb_107x74.jpg","./fileadmin/Images/referenzen/oxoid_107x74.jpg","./fileadmin/Images/referenzen/wdr_107x74.jpg","./fileadmin/Images/referenzen/dresdner_107x74.jpg");
var ref_pic_ref = new Array("http://www.google.de","http://www.gmx.de","http://www.youtube.com","http://www.yahoo.de","http://www.web.de","http://www.billiger.de","http://www.günstiger.de","http://www.ebay.de");
var new_transparency;
var id;
var from;
var to;

var back_new_transparency;
var back_id;
var back_from;
var back_to;


var start_pic = Math.round((Math.random()*(ref_pic.length-1)));

function start_fader() {
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}

function refresh_pic() {
	
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	if(start_pic == ref_pic.length)
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		setTimeout("refresh_pic()",refresh_time);
	}
	else
	{
		document.getElementById("ref_box").innerHTML = "<a href='./page.php?modul=HTMLPages&pid=15'><img id='ref_pic' src='"+ref_pic[start_pic]+"' border='0' style='visibility:hidden;' /></a>";
		fade_transparency('ref_pic',100,0);	
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}

function fade_transparency(id,from,to) {

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		if(document.getElementById(id).style.visibility == "hidden") document.getElementById(id).style.visibility = "visible";
		setTimeout("fade_transparency('"+id+"',"+new_transparency+","+to+")",fading_speed);
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	else
	{
		setTimeout("fade_transparency_back('"+id+"',"+to+",0)",refresh_time);
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}

function fade_transparency_back(back_id,back_from,back_to) {
	
	back_new_transparency = back_from + 4;
	
	if(back_new_transparency != back_to)
  {
		transparency(back_id, back_new_transparency);
		if(document.getElementById(back_id).style.visibility == "hidden") document.getElementById(back_id).style.visibility = "visible";
		setTimeout("fade_transparency_back('"+back_id+"',"+back_new_transparency+",100)",fading_speed);
	}
	else
	{
		refresh_pic();
	}
}