function xyz() {
var n="info";
var c="post@xyzdoebeli-roehrer.de";
var d=c.substr(8,18);
var m="mailto:"
var a=String.fromCharCode(32*2)
return '<a href=\"'+ m+n+a+d+'\">'+n+a+d+'</a>';
}

function openCentered(url, name, width, height, windowFeatures) {
  var popup;
  var x;
  var y;
  if ((width == 0) || (height == 0)) {
	  popup = window.open(url, name, windowFeatures);
  } 
  else {
    x = (screen.width) ? (screen.width - width) / 2 : 0;
    y = (screen.height) ? (screen.height - height) / 2 : 0;
	  popup = window.open(url, name, 'left=' + x + ',top=' + y + ',width=' + width + ',height=' + height + ',' + windowFeatures);
	}
  popup.focus();
}