function SeciliTab( tab )
  {
  if (tab==null) { return;}
   tab.className = "sekme_secili"; 
  } 
   function NormalTab( tab )
  {
  if (tab==null) { return;}
   tab.className = "sekme"; 
  } 

   function SetLink( link, url, kategori )
  {
    if (link==null) { return;}
    link.href=url+"?kategori="+kategori ;
    
  } 
  
  function SetBaslik(el , baslik )
  {
    if (el==null) { return;}
    el.innerText=baslik;  
  } 
    
 function HaberKategori(kategori)
 {
      NormalTab(document.getElementById("tbhborsa"));
      NormalTab(document.getElementById("tbhekonomi"));
      NormalTab(document.getElementById("tbhfinans"));
      var baslik="haberler";
      switch (kategori)
      {
      case "BORSA":
      SeciliTab(document.getElementById("tbhborsa"));
      baslik="borsa haberleri";
      break
      case "EKONOMI":
      SeciliTab(document.getElementById("tbhekonomi"));
      baslik="ekonomi haberleri";
      break
      case "FINANS":
      SeciliTab(document.getElementById("tbhfinans"));
      baslik="finans haberleri";
      break
      }
      
      SetLink(document.getElementById("tumhaberlink"), "../genel/TumHaberler.aspx",kategori); 
      SetBaslik(document.getElementById("tumhaber"),baslik);
    }
 
 function YorumKategori(kategori)
 {
      NormalTab(document.getElementById("tbborsa"));
      NormalTab(document.getElementById("tbbonorepo"));
      NormalTab(document.getElementById("tbvob"));
      NormalTab(document.getElementById("tbfon"));
      var baslik="";
      var altbaslik="";
      switch (kategori)
      {
      case "BORSA":
      SeciliTab(document.getElementById("tbborsa"))
      baslik="Borsa";
      altbaslik="Borsa";
      break
      case "BONOREPO":
      SeciliTab(document.getElementById("tbbonorepo"))
      baslik="Faiz";
      altbaslik="Faiz";
      break
      case "VOB":
      SeciliTab(document.getElementById("tbvob"))
      baslik="VOB";
      altbaslik="VOB";
      break
      case "FON":
      SeciliTab(document.getElementById("tbfon"))
      baslik="Fon";
      altbaslik="Fon";
      
      break
      }
      SetLink(document.getElementById("tumyorumlink"), "../genel/TumYorumlar.aspx",kategori); 
      SetBaslik(document.getElementById("yorumbaslik"),baslik);
      SetBaslik(document.getElementById("tumyorum"),altbaslik);
      
    }
 
 function GrafikKategori(kategori)
 {
      NormalTab(document.getElementById("tbgendeks"));
      NormalTab(document.getElementById("tbgdunya"));
      NormalTab(document.getElementById("tbgbonorepo"));
      NormalTab(document.getElementById("tbgvob"));
      NormalTab(document.getElementById("tbgdoviz"));
      NormalTab(document.getElementById("tbgfon"));
      switch (kategori)
      {
      case "IMKB":
      SeciliTab(document.getElementById("tbgendeks"))
      break
      case "BONOREPO":
      SeciliTab(document.getElementById("tbgbonorepo"))
      break
      case "VOB":
      SeciliTab(document.getElementById("tbgvob"))
      break
      case "FON":
      SeciliTab(document.getElementById("tbgfon"))
      break
      case "DUNYA":
      SeciliTab(document.getElementById("tbgdunya"))
      break
      case "DOVIZ":
      SeciliTab(document.getElementById("tbgdoviz"))
      break
      }
    }
 
 
function NewWindow(mypage,myname,w,h,scroll)
{
	var winl = (screen.width - w) / 2;
	var wint = (screen.height - h) / 2;
	var settings  ='height='+h+',';
	settings +='width='+w+',';
	settings +='top='+wint+',';
	settings +='left='+winl+',';
	settings +='scrollbars='+scroll+',';
	settings +='resizable=yes';
	window.open(mypage,myname,settings);
}


/* Client-side access to querystring name=value pairs
	Version 1.3
	28 May 2008
	
	License (Simplified BSD):
	http://adamv.com/dev/javascript/qslicense.txt
*/
function Querystring(qs) { // optionally pass a querystring to parse
	this.params = {};
	
	if (qs == null) qs = location.search.substring(1, location.search.length);
	if (qs.length == 0) return;

// Turn <plus> back to <space>
// See: http://www.w3.org/TR/REC-html40/interact/forms.html#h-17.13.4.1
	qs = qs.replace(/\+/g, ' ');
	var args = qs.split('&'); // parse out name/value pairs separated via &
	
// split out each name=value pair
	for (var i = 0; i < args.length; i++) {
		var pair = args[i].split('=');
		var name = decodeURIComponent(pair[0]);
		
		var value = (pair.length==2)
			? decodeURIComponent(pair[1])
			: name;
		
		this.params[name] = value;
	}
}

Querystring.prototype.getkey = function(key, default_) {
	var value = this.params[key];
	return (value != null) ? value : default_;
}

Querystring.prototype.contains = function(key) {
	var value = this.params[key];
	return (value != null);
}