var popshow = false;
			function isopop() {
				if(!popshow) {
					var div = document.createElement("DIV");
					div.id = "iso_popup";
					/*div.style = "cursor:pointer; width:640px; height:480px; background-color:#000; position:absolute; z-index:1; font-weight:bold; color:#FFF;";*/
					div.style.position = "absolute";
					div.style.left = (document.body.offsetWidth/2)-320+"px";
					div.style.top = (document.body.offsetHeight/2)-240+"px";
					div.style.cursor = "pointer";
					div.onclick = function() { this.style.display = 'none'; popshow=false; }
					div.innerHTML = "<img src=\"/images/iso_popup.jpg\" width=\"640\" height=\"480\" alt=\"ISO_BELGELI_KURULUS\" style=\"position:absolute; left:0px; top:0px;\"/>";
					document.body.appendChild(div);
					popshow = true;
				}
			}