// pop up serving functions
function hidePopUp()
{
	document.getElementById('popupbg').style.display = "none";
	if (document.getElementById('donotdisturb').checked){
		// setting up cookies
		DisablePopUp();
	}
}

function DisablePopUp() {
	var today = new Date();
	var expire = new Date();
	expire.setTime(today.getTime() + 3600000*24*1);
	document.cookie = "ShowNoPopUp=" + escape(1) + ";expires="+expire.toGMTString();
}

function checkifpopupneeded()
{
	var result = document.cookie.search('ShowNoPopUp=1');
	if (result == -1){ // if cookie is not set - showing popup
		document.getElementById('popupbg').style.display = "block";
	}
}