var strCookiePrefix = "GlobalSite_Ballerup_ITCenter_WebPart_";

function openClose(objImage)
{
	strImageID = objImage.id;

	strContentID = strImageID.replace("_image", "_content");
	objContent = document.getElementById(strContentID);

	if(objContent)
	{
		var dt = new Date();
		dt.setFullYear(2049,11,31)

		if(objContent.style.display == "none")
		{
			objContent.style.display = "";
			if(objImage)
			{
				objImage.src = "images/Ballerup-WebPartClose.jpg";
			}
			setCookie(strCookiePrefix + strContentID, "open", dt);
		}
		else
		{
			objContent.style.display = "none";
			if(objImage)
			{
				objImage.src = "images/Ballerup-WebPartOpen.jpg";
			}
			setCookie(strCookiePrefix + strContentID, "closed", dt);
		}
	}
}

function setWebPartStatusFromCookie(strID)
{
	strCookieValue = getCookie(strCookiePrefix + strID);
	if(strCookieValue)
	{
		strImageID = strID.replace("_content", "_image");
		objImage = document.getElementById(strImageID);

		objContent = document.getElementById(strID);
		if(objContent)
		{
			if(strCookieValue.toLowerCase() == "open")
			{
				objContent.style.display = "";
				if(objImage)
				{
					objImage.src = "images/Ballerup-WebPartClose.jpg";
				}
			}
			if(strCookieValue.toLowerCase() == "closed")
			{
				objContent.style.display = "none";
				if(objImage)
				{
					objImage.src = "images/Ballerup-WebPartOpen.jpg";
				}
			}
		}
		
	}
}

/**
 * Sets a Cookie with the given name and value.
 *
 * name       Name of the cookie
 * value      Value of the cookie
 * [expires]  Expiration date of the cookie (default: end of current session)
 * [path]     Path where the cookie is valid (default: path of calling document)
 * [domain]   Domain where the cookie is valid
 *              (default: domain of calling document)
 * [secure]   Boolean value indicating if the cookie transmission requires a
 *              secure transmission
 */
function setCookie(name, value, expires, path, domain, secure) {
    document.cookie= name + "=" + escape(value) +
        ((expires) ? "; expires=" + expires.toGMTString() : "") +
        ((path) ? "; path=" + path : "") +
        ((domain) ? "; domain=" + domain : "") +
        ((secure) ? "; secure" : "");

}

/**
 * Gets the value of the specified cookie.
 *
 * name  Name of the desired cookie.
 *
 * Returns a string containing value of specified cookie,
 *   or null if cookie does not exist.
 */
function getCookie(name) {
    var dc = document.cookie;
    var prefix = name + "=";
    var begin = dc.indexOf("; " + prefix);
    if (begin == -1) {
        begin = dc.indexOf(prefix);
        if (begin != 0) return null;
    } else {
        begin += 2;
    }
    var end = document.cookie.indexOf(";", begin);
    if (end == -1) {
        end = dc.length;
    }
    return unescape(dc.substring(begin + prefix.length, end));
}

/**
 * Deletes the specified cookie.
 *
 * name      name of the cookie
 * [path]    path of the cookie (must be same as path used to create cookie)
 * [domain]  domain of the cookie (must be same as domain used to create cookie)
 */
function deleteCookie(name, path, domain) {
    if (getCookie(name)) {
        document.cookie = name + "=" +
            ((path) ? "; path=" + path : "") +
            ((domain) ? "; domain=" + domain : "") +
            "; expires=Thu, 01-Jan-70 00:00:01 GMT";
    }
}