function olb_ac(u){
	/*TRANSPARAN KISIM*/
	var transparan_bg=document.createElement("div");
	transparan_bg.id="transparan_bg";
	transparan_bg.style.background="url(transblack.png)";
	transparan_bg.style.width=screen.width+"px";
	transparan_bg.style.height=screen.height+"px";
	transparan_bg.style.position="fixed";
	document.body.insertBefore(transparan_bg,document.body.childNodes[0]);
	transparan_bg.style.zIndex="99999";
	transparan_bg.style.marginLeft="-"+transparan_bg.offsetLeft+"px";
	transparan_bg.style.marginTop="-"+transparan_bg.offsetTop+"px";
	transparan_bg.style.textAlign="center";
	
	/*  İÇERİK DİVİ */
	var icerik_divi=document.createElement("div");
	icerik_divi.id="icerik_divi";
	icerik_divi.style.backgroundColor="white";
	icerik_divi.style.width="650px";
	icerik_divi.style.height="490px";
	icerik_divi.style.marginLeft="auto";
	icerik_divi.style.marginRight="auto";
	icerik_divi.style.marginTop=(Math.round((screen.height/2))-300)+"px";
	icerik_divi.style.border="10px solid #CCCCCC";
	transparan_bg.appendChild(icerik_divi);
	/* KAPAT BUTONU */
	var kapat_butonu=document.createElement("img");
	kapat_butonu.src="http://www.nasilkiloalirim.com/lbkapa.png";
	kapat_butonu.style.position="absolute";
	kapat_butonu.style.marginLeft="640px";
	kapat_butonu.style.marginTop="-23px";
	kapat_butonu.style.cursor="pointer";
	kapat_butonu.onclick=function(){olb_iptal(27)};
	icerik_divi.appendChild(kapat_butonu);
	
	/*IFRAME*/
	var ifrm=document.createElement("iframe");
	ifrm.id="ifrm";
	ifrm.name="ifrm";
	ifrm.src=u;
	ifrm.style.width="100%";
	ifrm.style.height="100%";
	ifrm.frameBorder=0;
	ifrm.scrolling="no";
	icerik_divi.appendChild(ifrm);
	if(navigator.appName!="Microsoft Internet Explorer"){
		document.body.setAttribute("onkeyup","olb_iptal(event.keyCode)");
	}
	else
	{
		document.body.onkeyup=function(){olb_iptal(event.keyCode)};
	}
	document.body.focus();
}

function olb_iptal(e){
	if(e==27){
		document.body.removeChild(document.getElementById("transparan_bg"));
	}
}