function sys_rollover(Bildname, Dateiname) {if (document.images) {document.images[Bildname].src = Dateiname }}
function sys_print(Link) {fenster=window.open(Link,"Print","width=650,height=600, location=no,menubar=no,scrollbars=yes,status=no,toolbar=no,resizable=yes")}
function sys_bahnplan(Link) {fenster=window.open(Link,"Bahnplan","width=750,height=550,left=5,top=5,location=no,menubar=no,scrollbars=yes,status=no,toolbar=yes,resizable=yes")}

function sys_fullyear(y) { //y2k-BUGFIX fuer Browser
  return (y < 1000 ? y+1900 : y);
}

function sys_format_date(name,jahrkorrektur)
{
    date_entry = document.formular.elements[name].value.split(".");
	tag=date_entry[0];
	monat=date_entry[1];
	jahr=date_entry[2];
    if (!jahrkorrektur) {
    if (!jahr) {var now = new Date(); jahr=sys_fullyear(now.getYear());}}

    if (tag>=1 && tag<=31 && monat>=1 && monat<=12 && jahr>1) {
        if (tag<10) {tag="0"+(tag*1);}
        if (monat<10) {monat="0"+(monat*1);}
        if (jahr<1000) {jahr=(jahr*1)+2000;}
    document.formular.elements[name].value=tag+"."+monat+"."+jahr;
   }
}

function sys_reloadCam() {
		  reload = new Date();
 		  reload = "?"+reload.getTime()
 		  document.images["webcam"].src = "http://www.rodelbahn-oberhof.de/data/webcam/webcam.jpg"+reload
 		  setTimeout("sys_reloadCam()", 1200000) // zeit-in-ms
}