function Show_File(theURL,winName,features) {
	window.open(theURL,winName,features);
}

function initTree(treeid, relative, extfile)
{
    var tree = document.getElementById(treeid);
    if (tree)
    {
        var tree_uls = tree.getElementsByTagName("ul");
        if (tree_uls.length)
        {
            for (var x = 0; x < tree_uls.length; x++)
            {
                if (getCookie(tree_uls[x].id) == "false")
                    tree_uls[x].style.display = "none";
                else if (getCookie(tree_uls[x].id) == "true")
                    tree_uls[x].style.display = "block";
                    
                var img = document.getElementById("img_" + tree_uls[x].id);
                if (img)
                    img.src = relative + tree_uls[x].style.display + "." + extfile;
            }
        }
        if (getCookie(treeid) == "false")
            tree.style.display = "none";
        else
            tree.style.display = "block";

    }
}

function overlay(curobj, subobjstr, relative, extfile){
	if (document.getElementById)
    {
		var subobj = document.getElementById(subobjstr)
		subobj.style.display = (subobj.style.display!="none") ? "none" : "block";
		curobj.src = relative + subobj.style.display + "." + extfile;
        if (subobj.style.display == "none")
            setCookie(subobjstr, "false", "", "/");
        else
            setCookie(subobjstr, "true", "", "/");
		return false
	} else
		return true
}

/**
 * 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";
    }
}