var is_regexp = (window.RegExp) ? true : false;

// #############################################################################
var tiDOMtype = '';
if (document.getElementById)
{
	tiDOMtype = "std";
}
else if (document.all)
{
	tiDOMtype = "ie4";
}
else if (document.layers)
{
	tiDOMtype = "ns4";
}
var tiobjects = new Array();

// #############################################################################
function fetch_object(idname, forcefetch)
{
	if (forcefetch || typeof(tiobjects[idname]) == "undefined")
	{
		switch (tiDOMtype)
		{
			case "std":
			{
				tiobjects[idname] = document.getElementById(idname);
			}
			break;

			case "ie4":
			{
				tiobjects[idname] = document.all[idname];
			}
			break;

			case "ns4":
			{
				tiobjects[idname] = document.layers[idname];
			}
			break;
		}
	}
	return tiobjects[idname];
}

// #############################################################################
function tab_btn(objid)
{
	
if (objid != "aciklama")
	{
	fetch_object("btn_aciklama").className="altbtn0";
	fetch_object("tab_aciklama").style.display = "none";}
if (objid != "ekyer")
	{
	fetch_object("btn_ekyer").className="altbtn3";
	fetch_object("tab_ekyer").style.display = "none";}
if (objid != "tavsiye")
	{
	fetch_object("tab_tavsiye").style.display = "none";
	fetch_object("btn_tavsiye").className="altbtn2";}
if (objid != "yorum")
	{
	fetch_object("tab_yorum").style.display = "none";
	fetch_object("btn_yorum").className="altbtn1";}
	
	if (!is_regexp)
	{
		return false;
	}
	
	obj = fetch_object("btn_" + objid);
	cel = fetch_object("tab_" + objid);
	

	if (cel.style.display == "")
	{
		cel.style.display = "none";

	}
	else
	{
		cel.style.display = "";
		obj.className="altbtnx";
	}
	document.location.href="#orta";
	return false;
}

//