$(document).ready(function() {


	if (getCookie('visited') != 1) {

		showBanner();
		
	}
	setCookie('visited', 1, 2);

});

function showBanner() {
	var imageWidth = 636,
	    imageHeight = 450,
		continueMsg = 'Pokračovat na ceskyfarmarskytrh.cz';
	$(document.body).append('<div id="overlay" style="cursor: pointer; background: #000; display: none; position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0.7; -ms-filter:\'progid:DXImageTransform.Microsoft.Alpha(Opacity=50)\'; filter: alpha(opacity=50); "></div>');
	$(document.body).append('<div id="banner" style="display: none; position: absolute; top: 10%; left: 50%; margin-left: -' + Math.round(imageWidth / 2) + 'px; "><a style="position: absolute; text-decoration: none; border: 1px solid white; padding: 0px 6px 1px 6px; right: 8px; top: 8px; display: block; color: #fff; " href="#" class="close" onclick="return false">x</a><a style="position: absolute; color: white; margin-top: ' + (imageHeight + 20) + 'px; margin-left: 0px; text-decoration: none;" class="close" href="#" onclick="return false"><strong style="color:#fff;font-size:12px;">' + continueMsg + '</strong></a><a href="/"><img src="/img/banner.jpg"/></a></div>');
	$('#overlay').css('height', $(document).height());
	$('#banner, #overlay').fadeIn(1000);
	$('#overlay, #banner .close').click(function() { $('#banner, #overlay').fadeOut(300) });
}

function setCookie(c_name, value, expiredays) {
	var exdate=new Date();
	exdate.setDate(exdate.getDate()+expiredays);
	document.cookie=c_name+ "=" +escape(value)+";path=/";
	((expiredays==null) ? "" : ";expires="+exdate.toGMTString());
}

function getCookie(c_name) {
	if (document.cookie.length>0) {
		c_start=document.cookie.indexOf(c_name + "=");
		if (c_start!=-1) {
			c_start=c_start + c_name.length+1;
			c_end=document.cookie.indexOf(";",c_start);
			if (c_end==-1) c_end=document.cookie.length;
			return unescape(document.cookie.substring(c_start,c_end));
		}
	}
	return "";
}