function aus(x)
{
	if(document.all)
	{document.all[x].style.visibility = "hidden";}
	else if(document.layers)
	{document.layers[x].visibility = "hide";}
	else if(document.getElementById)
	{document.getElementById(x).style.visibility = "hidden";}
}

function ein(x)
{
	if(document.all)
	{document.all[x].style.visibility = "visible";}
	else if(document.layers)
	{document.layers[x].visibility = "show";}
	else if(document.getElementById)
	{document.getElementById(x).style.visibility = "visible";}

}

function oguz(xx,AA)
{
	if(document.f.elements[AA].checked == true)
	{ein(xx);}else{aus(xx);}
}
function datum_setzen()
{
	var jetzt = new Date();
	 tag = jetzt.getDate();
	 mon = jetzt.getMonth()+1;
	 jah = jetzt.getYear();
	document.f.v_tag.value = tag;
	document.f.v_monat.value = mon;
	document.f.v_jahr.value = jah;
	document.f.b_tag.value = tag+1;
	document.f.b_monat.value = mon;
	document.f.b_jahr.value = jah;
	
}