ITime = new Date();

function _id(e) { return document.getElementById('' + e + ''); }

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for(var i=0;i < ca.length;i++) {
		var c = ca[i];
		while (c.charAt(0)==' ') c = c.substring(1,c.length);
		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
	}
	return null;
}

function createCookie(name,value,days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime()+(days*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	}
	else var expires = "";
	document.cookie = name+"="+value+expires+"; path=/";
}


function setPopupTimer(w, h, e, c, topPossition, leftPossition, s) {
	if (!(readCookie('ImperaPopupTime'))) { 
		ISec = (ITime.getMinutes() * 60 + (((ITime.getHours() * 60) * 60) + (ITime.getSeconds() + s)));
		createCookie('ImperaPopupTime',ISec,1); 
	}
	setLightbox(w, h, e, c, topPossition, leftPossition, 1);
}

function setLightbox(w, h, e, c, topPossition, leftPossition, s) {
	if (s) {
		if (readCookie('ImperaPopupTime')) {
			ISec = ITime.getMinutes() * 60;
			ISec = (ISec + ((ITime.getHours() * 60) * 60));
			ISec = ISec + ITime.getSeconds();
			ISec = (ISec + s);

			if (ISec >= readCookie('ImperaPopupTime')) {
				setLightbox(w, h, e, c, topPossition, leftPossition);
			}
			else {
				s = s + 1;
				setTimeout(function(){setLightbox(w, h, e, c, topPossition, leftPossition, s)},1000);
			}
			
		}
		else {
			setLightbox(w, h, e, c, topPossition, leftPossition, s);
		}
	}
	else {
		if(readCookie('ImperaPopup') && c) { }
		else {
			if (c) { createCookie('ImperaPopup','yes',c);}
			if(_id('Lightbox')) { _id('Lightbox').style.display = 'block'; }
			else {
				newE = document.createElement("div");
				newE.id = 'Lightbox';
				newE.style.position = 'absolute';
				newE.style.top = '0px';
				newE.style.left = '0px';
				newE.style.height = '' + document.documentElement.scrollHeight + 'px';
				newE.style.width = '100%';
				newE.style.cursor = 'pointer';
				newE.style.zIndex = '999';
				newE.style.backgroundColor = '#000000';
				newE.style.filter = 'alpha(opacity=50)';
				newE.style.opacity = '.50';
				document.body.insertBefore(newE, document.body.firstChild); 
			}

			if(_id('LightboxContent')) {
				e1 = _id('LightboxContent');
				e1.style.display = 'block'; 
				e1.style.top = '' + (((document.documentElement.offsetHeight / 2) - parseInt(h / 2)) + document.documentElement.scrollTop) + 'px';
				e1.style.left = '' + (((document.documentElement.offsetWidth / 2) - parseInt(w / 2)) - document.documentElement.scrollLeft) + 'px';
			}
			else { A = document.createElement("div");
				A.id = 'LightboxContent';
				A.style.position = 'absolute';
				A.style.top = '' + (((document.documentElement.offsetHeight / 2) - parseInt(h / 2)) + document.documentElement.scrollTop) + 'px';
				A.style.left = '' + (((document.documentElement.offsetWidth / 2) - parseInt(w / 2)) - document.documentElement.scrollLeft) + 'px';
				A.style.height = '' + h + 'px';
				A.style.width = '' + w + 'px';
				A.style.zIndex = '1001';
				document.body.insertBefore(A, document.body.firstChild); 
			}
			_id('LightboxContent').innerHTML = '<div id="popupCloseButton" onclick="closeLightbox();" style="position: absolute; width: 24px; height: 19px; top: ' + topPossition +'px; left: ' +  leftPossition +'px; background: #123456 url(http://undersokningar.impera.se/popup/Bilder/Design/closeButton.png); cursor: pointer; z-index: 99999;"></div><iframe id="impera_popup" src="' + e + '" name="impera_popup" style="width: ' + w + 'px; height: ' + h + 'px;" scrolling="no" frameborder="0"></iframe>';
			if(navigator.appName == "Microsoft Internet Explorer") { _id('Lightbox').attachEvent('onclick', closeLightbox); }
			else { _id('Lightbox').addEventListener('click', closeLightbox,false); }
		}
	}
}
function closeLightbox() { _id('Lightbox').style.display = 'none'; _id('LightboxContent').style.display = 'none'; _id('LightboxContent').innerHTML = ''; }