function start() {
    if (location.hash.length > 1) {
        var id = location.hash.substr(1);
        filter(id);
    }
}

function filter(id) {
    var sections = MbmUtils.getElementsByClassName("section", "div", document.getElementById("body"));
    for (i = 0; i < sections.length; i++) {
        var section = sections[i];
        if (section.id == "section_" + id || id=="all") section.style.display = "block";
        else section.style.display = "none";
    }

    var tocitems = MbmUtils.getElementsByClassName("tocitem", "a", document.getElementById("toc"));
    for (i = 0; i < tocitems.length; i++) {
        var tocitem = tocitems[i];
        if (tocitem.id == "toc_" + id) MbmUtils.addClassName(tocitem, "current");
        else MbmUtils.removeClassName(tocitem, "current");
    }
}

function description(nickname) {
	var descr = document.getElementById(nickname);
	if(descr.style.display=="block") descr.style.display="none"; else descr.style.display="block";
}



//Wrapper object for my utilities:
var MbmUtils = new Object();

//Adds a classname to the element, NOT overwriting any other classnames already in there:
MbmUtils.addClassName = function(element, className) {
    if (element) {
        if (element.className == '') element.className = className;
        else element.className += ' ' + className;
    }
};

//Removes a classname from an element, keeping any other classnames untouched:
MbmUtils.removeClassName = function(element, className) {
    if (element && element.className) {
        var newClassNames = '';
        var classNames = element.className.split(' ');
        for (var i = 0; i < classNames.length; i++) {
            if (classNames[i] != className) {
                if (newClassNames != '') newClassNames += ' ';
                newClassNames += classNames[i];
            }
        }
        element.className = newClassNames;
    }
};

/* Developed by Robert Nyman, http://www.robertnyman.com, code/licensing: http://code.google.com/p/getelementsbyclassname/ */
MbmUtils.getElementsByClassName = function(className, tag, elm) {
    if (document.getElementsByClassName) {
        getElementsByClassName = function(className, tag, elm) {
            elm = elm || document;
            var elements = elm.getElementsByClassName(className),
				nodeName = (tag) ? new RegExp("\\b" + tag + "\\b", "i") : null,
				returnElements = [],
				current;
            for (var i = 0, il = elements.length; i < il; i += 1) {
                current = elements[i];
                if (!nodeName || nodeName.test(current.nodeName)) {
                    returnElements.push(current);
                }
            }
            return returnElements;
        };
    }
    else if (document.evaluate) {
        getElementsByClassName = function(className, tag, elm) {
            tag = tag || "*";
            elm = elm || document;
            var classes = className.split(" "),
				classesToCheck = "",
				xhtmlNamespace = "http://www.w3.org/1999/xhtml",
				namespaceResolver = (document.documentElement.namespaceURI === xhtmlNamespace) ? xhtmlNamespace : null,
				returnElements = [],
				elements,
				node;
            for (var j = 0, jl = classes.length; j < jl; j += 1) {
                classesToCheck += "[contains(concat(' ', @class, ' '), ' " + classes[j] + " ')]";
            }
            try {
                elements = document.evaluate(".//" + tag + classesToCheck, elm, namespaceResolver, 0, null);
            }
            catch (e) {
                elements = document.evaluate(".//" + tag + classesToCheck, elm, null, 0, null);
            }
            while ((node = elements.iterateNext())) {
                returnElements.push(node);
            }
            return returnElements;
        };
    }
    else {
        getElementsByClassName = function(className, tag, elm) {
            tag = tag || "*";
            elm = elm || document;
            var classes = className.split(" "),
				classesToCheck = [],
				elements = (tag === "*" && elm.all) ? elm.all : elm.getElementsByTagName(tag),
				current,
				returnElements = [],
				match;
            for (var k = 0, kl = classes.length; k < kl; k += 1) {
                classesToCheck.push(new RegExp("(^|\\s)" + classes[k] + "(\\s|$)"));
            }
            for (var l = 0, ll = elements.length; l < ll; l += 1) {
                current = elements[l];
                match = false;
                for (var m = 0, ml = classesToCheck.length; m < ml; m += 1) {
                    match = classesToCheck[m].test(current.className);
                    if (!match) {
                        break;
                    }
                }
                if (match) {
                    returnElements.push(current);
                }
            }
            return returnElements;
        };
    }
    return getElementsByClassName(className, tag, elm);
};

//-------------------------------------------
//-------------------------------------------