var popupStatus = 0;

function showpupop(){
	 if(popupStatus==0){
	jQuery("#backgroundPopup").css({
		"opacity": "0.6"
	});
	jQuery("#map").attr("src", 'http://www.avento.no/maps/farstad.htm');
	jQuery("#backgroundPopup").fadeIn("slow");
	jQuery("#google_maps").fadeIn("slow");
	popupStatus = 1;
	centerPopup();
	}
}

//disabling popup with jQuery magic!
 function disablePopup(){
	//disables popup only if it is enabled
	if(popupStatus==1){
	jQuery("#backgroundPopup").fadeOut("slow");
	jQuery("#google_maps").fadeOut("slow");
	popupStatus = 0;
	}
 }

function centerPopup(){
	var windowWidth = document.documentElement.clientWidth;
	var windowHeight = document.documentElement.clientHeight;
	var popupHeight = jQuery("#google_maps").height();
	var popupWidth = 1000;
	//centering
	jQuery("#google_maps").css({
	"position": "absolute",
	"top": windowHeight/2-popupHeight/2,
	"left": windowWidth/2-popupWidth/2
	});

	jQuery("#backgroundPopup").css({
	"height": windowHeight
	});
}