document.write('<style type="text/css">.opacing {opacity:0;filter:alpha(opacity=50);)}</'+'style>');
opac=0;
function opacall() {
 if(opac>100) {clearInterval(opacintervall);}
 else {
  document.getElementById("opacing").style.filter="alpha(opacity="+opac+")";
  document.getElementById("opacing").style.opacity=opac*0.01;
  opac++;
 }
}

function show(id) {document.getElementById(id).style.visibility='visible';}
function hide(id) {document.getElementById(id).style.visibility='hidden';}

 function showit(id) {document.getElementById(id).style.display='inline';
 //document.getElementById('inhalt2').style.visibility='hidden';
 }
 function hideit(id) {document.getElementById(id).style.display='none';
 //document.getElementById('inhalt2').style.visibility='visible';
 }

function actio_et_reactio() {
 if(document.getElementById('opacing')) {
  opacintervall=setInterval('opacall()',36);
 }
}