function getParams() {
    var thisURL = document.URL;
    if (thisURL.indexOf("?") == -1) { return null; }
    var paramStr = thisURL.substr((thisURL.indexOf("?")+1));
    var paramSplit;
    var endPos;
    var paramName;
    var paramValue;
    // loop through the params
    while (paramStr != "") {
    paramSplit = paramStr.indexOf("=");
    if (paramSplit == -1) { break; }
    endPos = paramStr.indexOf("&");
    if (endPos < 0) { endPos = 500000; }
    paramName = paramStr.substr(0,paramSplit);
    paramValue = paramStr.substring(paramSplit+1,endPos);
    // create variable and set value
    eval(paramName + " = \"" + paramValue + "\"");
    paramStr = paramStr.substr(endPos+1);
    }
    return null;
  } // getParams()

  function getCookie() {
    var keks = document.cookie;
    // startposition of seo entry...
     var posName = keks.indexOf("; seo=");
     if (posName == -1) {
      // perhaps first entry in cookie list?
      if (keks.indexOf("seo=") == 0) posName = 0;
      // no luck, break
      else return null;
     }
     // search start and endposition
     var valueStart = keks.indexOf("=", posName)+1;
     var valueEnd = keks.indexOf(";", posName+1);
     if (valueEnd == -1) valueEnd = keks.length;
     // get value and return
     var val = keks.substring(valueStart, valueEnd);
     return unescape(val);
  } // getCookie()

  function showPageInfo() {
	  getParams();
	  if ((typeof(seo) !== 'undefined') && (navigator.cookieEnabled == true)) {
	    // param seo is set
	    if (seo == 1) {
	    // set cookie
	    document.cookie = "seo=1; path=/;";
	    }
	    else {
	    // delete cookie
	    var exp = new Date(); 
	    exp.setTime (exp.getTime() - 1); 
	    document.cookie = "seo=0; path=/; expires=" + exp.toGMTString()+";";
	    }
	  }
	  else if (typeof(seo) == 'undefined') {
	    seo = 0;
	  }
	
	  if (navigator.cookieEnabled == true) {
	    seo = getCookie();
	    if (seo == null) seo = 0;
	  }
	
	  if (seo == 1) {
	    // show informations about website title, description and keywords
	    var title = document.title;
	    var description = "";
	    var keywords = "";
	    meta = document.getElementsByTagName("meta");
	    if (typeof(meta.description) !== 'undefined') description = meta.description.content;
	    if (typeof(meta.keywords) !== 'undefined') keywords = meta.keywords.content;
	    titleCount = title.split(" ");
	    descriptionCount = description.split(" ");
	    keywordsCount = keywords.split(",");
	    document.write('<div style="margin:10px;padding:10px;border:1px solid #000;"><p><b>Seitentitel:</b><br /><i>'+title+'</i><br /><span style="font-size:smaller;">W&ouml;rter: <b>'+titleCount.length+'</b> L&auml;nge: <b>'+title.length+'</b></span></p>'+
	    '<p><b>Kurzbeschreibung:</b><br /><i>'+description+'</i><br /><span style="font-size:smaller">W&ouml;rter: <b>'+descriptionCount.length+'</b> L&auml;nge: <b>'+description.length+'</b></span></p>'+  
	    '<p><b>Schl&uuml;sselw&ouml;rter:</b><br /><i>'+keywords+'</i><br /><span style="font-size:smaller">W&ouml;rter: <b>'+keywordsCount.length+'</b> L&auml;nge: <b>'+keywords.length+'</b></span></p>'+
	    '</div>');
	  }
  } // showPageInfo()