//*************************************************
//***** COPYRIGHT 2006, PRACTICAL DATA, INC. ******
//***** - UNAUTHORIZED USE IS PROHIBITED **********
//*************************************************
function pdGetCookie(cookieName) {
	var allCookies = document.cookie;
	var cookieStart = allCookies.indexOf(cookieName)
	if(cookieStart == -1) return "";
	cookieStart = cookieStart + cookieName.length + 1;
	var cookieEnd = allCookies.indexOf(";", cookieStart);
	if(cookieEnd == -1) cookieEnd = allCookies.length;
	var cookieValue = unescape(allCookies.substring(cookieStart, cookieEnd));
	return cookieValue;
}

function pdSetCookie(cookieName, cookieValue, cookieDomain, cookiePath, expirationDate) {
	if(isBlank(cookieDomain)) cookieDomain = getCurrentDomainName();
	if(isBlank(cookiePath)) cookiePath = "/";
	var cookieString = cookieName + "=" + escape(cookieValue) + ";domain=" + cookieDomain + ";path=" + cookiePath;
	if(!isBlank(expirationDate)) {
		cookieString += ";expires=" + expirationDate.toGMTString();
	}
	document.cookie = cookieString;
	return true;
}

function getCurrentDomainName() {
	var url = String(location);
	var domainName = extractDomain(url);
	return domainName;
}

function extractDomain(url) {
	var url = url.replace("http://", "");
	var slashIndex = url.indexOf("/");
	if(slashIndex == -1) slashIndex = url.length;
	var url = url.substring(0, slashIndex);
	var urlSectionArray = url.split('.');
	var urlSectionArrayLength = urlSectionArray.length;
	var domainName = "";
	for(var i=urlSectionArrayLength - 2;i<urlSectionArrayLength; i++) {
		domainName += "." + urlSectionArray[i];
	}
	return domainName;
}

function isBlank(item) {
	item = String(item).toLowerCase();
	if(item == "undefined" || item == "" || item == "null") return true;
	else return false;
}