var SearchEngineVariable = 'q';



function KeyWordIncludeReferrer()

{

   try

   {

      var ref = document.referrer.toUpperCase();

      if (ref.indexOf('GOOGLE.COM') > 0) { SearchEngineVariable = 'q'; return true; }

      if (ref.indexOf('YAHOO.COM') > 0) { SearchEngineVariable = 'p'; return true; }

      if (ref.indexOf('LOCALHOST') > 0) { SearchEngineVariable = 'q'; return true; }

   }

   catch (exception) { KeyWordProcessError('KeyWordIncludeReferrer',exception); }

   return false;

}





function KeyWordIncludeUrl()

{

    var Href = document.location.href.toUpperCase();

 

    try

    {

      if (Href.indexOf('/myfoldertoinclude/') > -1 ) { return true; }

      if (Href.indexOf('LOCALHOST') > -1 ) { return true; }	

    }

    catch (exception) { KeyWordProcessError('KeyWordIncludeUrl',exception); }

    return false;

}







function KeyWordGetColor(idx)

{

    var color = '#CCCCCC';



    switch (idx)

    {

       case 0:

	       color='#99FF99'; break;

       case 1:

               color='yellow'; break;

       case 2:

               color='#FFCCFF'; break;

       case 3:

               color='#CC99FF'; break;

       case 4:

               color='#99CCFF'; break;

       case 5:

               color='#FFCC99'; break;

       case 6:

               color='#CCCCFF'; break;

       case 7:

               color='#66CCFF'; break;

       default:

               break;

    }

    return color;

}





 function KeyWordExcludePhrase(keyword)

 {



    var ret = false;



    switch (keyword.toUpperCase())

    {

      case 'AND' :                         return true;

      case 'OR' :                          return true;

      case 'SITE:EGGHEADCAFE.COM' :        return true;

      case 'SITE:WWW.EGGHEADCAFE.COM' :    return true;

      case '' :                            return true;

    }

	     

    return false;

 }



  



function KeyWordGetKeyWordsFromQueryString()

{



   if (KeyWordIncludeReferrer() == false) { return true; }



   var keywords = new Array();

   var ref = document.referrer;

   var pair;

   var qIndex = 0;

   var qs;

   var prm;



   try

   {



    

     qIndex = ref.indexOf('?');



     if (qIndex < 1) { return keywords; }

     

     ref = KeyWordReplace(ref,'%22','');



     qs = ref.substring(qIndex + 1,ref.length);



     prm = qs.split('&');



     for (i=0;i<prm.length;i++)

     {



       pair = prm[i].split('=');



       temp = unescape(pair[0]).split('+');

       name = temp.join(' ');



       if (name != SearchEngineVariable) { continue; }



       temp = unescape(pair[1]).split('+');

         

       for(k=0;k<temp.length;k++)

       {

         if (KeyWordExcludePhrase(temp[k]) == true) { continue; }

         keywords.push(temp[k]);

       }

		

     }



   }

   catch (exception) { KeyWordProcessError('KeyWordGetKeyWordsFromQueryString',exception); }

   return keywords;

}









function KeyWordHiLite()

{ 

 

  if (KeyWordIncludeUrl() == false) { return true; }

 

  var Links;

  var rng;

  var before = '&nbsp;<font style="color: #000000;text-decoration:none;background-color: ';

  var after = '</b>&nbsp;</font>&nbsp;';



  try

  {

     

    keywords = KeyWordGetKeyWordsFromQueryString();



    if (keywords.length < 1) { return true; }

 

    Links = KeyWordGetLinks();



    for(k=0;k<keywords.length;k++)

    {



      rng = document.body.createTextRange();  

  

      for (i=0;rng.findText(keywords[k])!=false; i++)

      { 

 

        try       { rng.pasteHTML(before + KeyWordGetColor(k) + ';">&nbsp;<b>' +  rng.text + after);   }

        catch (e) { KeyWordProcessError('KeyWordHiLite Text Range',e);    }	

        finally   { rng.collapse(false); }

      

      }



      rng.collapse(true);

    }



    KeyWordCleanLinks(Links);

        

  }

  catch (exception) { KeyWordProcessError('KeyWordHiLite',exception); }

  

}







function KeyWordGetLinks()

{



   var Links = new Array();

   

   for (i=0;i<document.body.getElementsByTagName('A').length;i++)

   {

	  Links[i] = new Array (document.body.getElementsByTagName('A')[i].href, document.body.getElementsByTagName('A')[i].innerHTML); 

   }



   return Links;

}







function KeyWordCleanLinks(Links)

{

  for (i=0;i<document.body.getElementsByTagName('A').length;i++)

  { 

    document.body.getElementsByTagName('A')[i].href = Links[i][0]; 

    document.body.getElementsByTagName('A')[i].innerHTML = Links[i][1];

  }

}





function KeyWordProcessError(functionName,e)

{

  if (e.description == null)

  {

//	  alert(functionName + ' ' + e.message); 

  }

  else

  { 

	//  alert(functionName + ' ' + e.description);

  }

}



function KeyWordReplace(OrgVal,SearchVal,ReplaceVal)

{

  var Val;

  var RegExp = eval("/" + SearchVal + "/g");

  if (OrgVal.indexOf(SearchVal) <1) {  return OrgVal; }

  Val = OrgVal.replace(RegExp,ReplaceVal);

  return Val;

}