// BROWSER SELECTION
var OSName = "Unknown OS";
var IE7 = false
if (navigator.appVersion.indexOf("Win") != -1) OSName = "Windows";
if (navigator.appVersion.indexOf("Mac") != -1) OSName = "MacOS";
if (navigator.appVersion.indexOf("X11") != -1) OSName = "UNIX";
if (navigator.appVersion.indexOf("Linux") != -1) OSName = "Linux";
if (navigator.appVersion.indexOf("MSIE ") != -1) {
    var index = navigator.appVersion.indexOf("MSIE")
    var version = navigator.appVersion.substring(index + 5, index + 6);
    if (version >= 7) {
        IE7 = true;
    }
}

// DROP DOWN CONTROL
function sfHover() {
    if ((OSName == "Windows") && (document.all)) {
        if (document.getElementById("subnav")) {
            var sfEls = document.getElementById("subnav").getElementsByTagName("LI");
            for (var i = 0; i < sfEls.length; i++) {
                sfEls[i].onmouseover = function() {
                    this.className += " sfhover";
                }
                sfEls[i].onmouseout = function() {
                    this.className = this.className.replace(new RegExp(" sfhover\\b"), "");
                }
            }
        }
    }
}

function mcAccessible() {
    if (document.getElementById("subnav")) {

        var mcEls = document.getElementById("subnav").getElementsByTagName("A");
        for (var i = 0; i < mcEls.length; i++) {
            mcEls[i].onfocus = function() {
                this.className += (this.className.length > 0 ? " " : "") + "sffocus"; //a:focus
                this.parentNode.className += (this.parentNode.className.length > 0 ? " " : "") + "sfhover"; //li < a:focus
                if (this.parentNode.parentNode.parentNode.nodeName == "LI") {
                    this.parentNode.parentNode.parentNode.className += (this.parentNode.parentNode.parentNode.className.length > 0 ? " " : "") + "sfhover"; //li < ul < li < a:focus
                    if (this.parentNode.parentNode.parentNode.parentNode.parentNode.nodeName == "LI") {
                        this.parentNode.parentNode.parentNode.parentNode.parentNode.className += (this.parentNode.parentNode.parentNode.parentNode.parentNode.className.length > 0 ? " " : "") + "sfhover"; //li < ul < li < ul < li < a:focus
                    }
                }
            }
            mcEls[i].onblur = function() {
                this.className = this.className.replace(new RegExp("( ?|^)sffocus\\b"), "");
                this.parentNode.className = this.parentNode.className.replace(new RegExp("( ?|^)sfhover\\b"), "");
                if (this.parentNode.parentNode.parentNode.nodeName == "LI") {
                    this.parentNode.parentNode.parentNode.className = this.parentNode.parentNode.parentNode.className.replace(new RegExp("( ?|^)sfhover\\b"), "");
                    if (this.parentNode.parentNode.parentNode.parentNode.parentNode.nodeName == "LI") {
                        this.parentNode.parentNode.parentNode.parentNode.parentNode.className = this.parentNode.parentNode.parentNode.parentNode.parentNode.className.replace(new RegExp("( ?|^)sfhover\\b"), "");
                    }
                }
            }
        }
    }
}

function IEextras() {
    if ((document.all) && (OSName == "Windows")) {
        // MAX WIDTH CONTROL
        document.write("<style type=\"text/css\">\n");
        document.write("#page {width:expression(document.body.clientWidth > 1024? \"1024px\" : \"auto\");}\n");

        // SUB MENU OPACITY
        document.write("#subnavholder, #subnav li {filter: progid:DXImageTransform.Microsoft.Alpha(opacity=90);}\n");
        document.write("#subnav li li:hover, #subnav li li.sfhover {filter: progid:DXImageTransform.Microsoft.Alpha(enabled = false);}\n");

        // SUB MENU EXTRAS
        document.write("#subnavholder {width: 100%;}\n");
        document.write("#subnav a {display: block;}\n");
        document.write("#subnav li {float: left; padding: 0;}\n");
        document.write("#subnav li ul {position: absolute; left: -999em; height: auto; font-weight: normal; border-bottom: 1px solid #ffffff; border-right: 1px solid #ffffff; border-left: 1px solid #ffffff; margin: 0;}\n");
        document.write("#subnav li li {border-top: 1px solid #ffffff; padding-right: 1em;}\n");
        document.write("#subnav li ul ul {margin-top: -1.8em;}\n");
        document.write("#image h1 {clear: left;}\n");
        document.write("</style>\n");
    }
}

// MIN WIDTH CONTROL
function WindowWidth() {
    if ((document.all) && (OSName == "Windows")) {
        winSize = document.documentElement.clientWidth;
        if (winSize <= 742) {
            document.getElementById("page").style.width = "740px";
        } else if ((winSize >= 743) && (winSize <= 1024)) {
            document.getElementById("page").style.width = "auto";
        } else {
            document.getElementById("page").style.width = "1024px";
        }
    }
    if (IE7 && location.href.indexOf("pages") != -1) {
        try {
            //document.getElementById("main").style.width = "93%";
        } catch (err) {

        }
    }
}

function RunStart() {
    sfHover();
    mcAccessible();
    WindowWidth();
}

function addEvent(obj, evType, fn) {
    if (obj.addEventListener) {
        obj.addEventListener(evType, fn, false);
        return true;
    } else if (obj.attachEvent) {
        var r = obj.attachEvent("on" + evType, fn);
        return r;
    } else {
        return false;
    }
}
addEvent(window, 'load', RunStart);
addEvent(window, 'resize', WindowWidth);