var zwischen = 'null';
var offen = 'null';
var ende = 'null';
var opened ="";

if (navigator.appName=="Microsoft Internet Explorer")
	{zwischen = '.all.';
	 ende = '.style.visibility';
	 mszwischen='.all.';
	 }
else if (navigator.appName=="Netscape")
	{zwischen = '.';
	 ende = '.visibility';	 
	 mszwischen='.main.document.';
	 }

function msover(ebene){
eval('document'+ mszwischen + ebene +'.src="../img/nav/' + ebene + '_over.gif";');
 }
 
function msout(ebene) {
eval('document'+ mszwischen + ebene +'.src="../img/nav/' + ebene + '.gif";');
}


function virfens(what, ort){
if (opened!="") { var para=opened; opened=""; virfens('close', para);}
	

if (what=='open') {
	eval('document' + zwischen + ort + ende + ' = "visible";');
	opened = ort;
	}
else if (what=='close') {
	eval('document' + zwischen + ort + ende + ' = "hidden"');
	opened = '';
	}
}

function virprint(what, was){
window.open('../print/'+what+'.php?'+what+'='+was, "", "width=500,height=40, scrollbars=no");    
}

function virprinteb(what, was, eb){
window.open('../print/'+what+'.php?'+what+'='+was+"&eb="+eb, "", "width=500,height=40, scrollbars=no");    
}