function hideDivs(exempt) {
	
	var anchors = document.getElementsByTagName("a");
	for (var i = 0; i < anchors.length; i++) {

		if (anchors[i].id == "nav_" + exempt){
			anchors[i].className="active";
		}else{
			anchors[i].className="inactive";
		}
	}
	
	
    if (!document.getElementsByTagName) {
        return null;
    }
    if (!exempt) {
        exempt = "";
    }
    var divs = document.getElementsByTagName("div");
    for (var i = 0; i < divs.length; i++) {
        var div = divs[i];
        var id = div.id;
        if (id != "header" && id !=  'sponsors' && id != "page" && id !="main" && id !="middle" && id != "footer" && id != exempt) {
            div.className = "hidden";
        }
    }
}


function fixLinks() {
    if (!document.getElementsByTagName) {
        return null;
    }
    var server = document.location.hostname;
    var anchors = document.getElementsByTagName("a");
    for (var i = 0; i < anchors.length; i++) {
        var a = anchors[i];
        var href = a.href;
        var id = a.id;
        var title = a.title;
        if (href.indexOf("#header") != -1) {
            a.className = "alt";
        } else if (href.indexOf("#") != -1 && href.indexOf("header") == -1) {
            var index = href.indexOf("#") + 1;
            href = "javascript:show('" + href.substring(index) + "');";
            a.setAttribute("href", href);
        }
    }
}


function show(what) {
    if (!document.getElementById) {
        return null;
    }
    showWhat = document.getElementById(what);

    showWhat.className = "";
    hideDivs(what);
}


function sendFocus(what) {
    var obj = document.getElementById(what);
    obj.focus();
}


function open_window(href) {
    var width = parseInt(screen.availWidth * 0.8);
    var height = parseInt(screen.availHeight * 0.8);
    var x = parseInt(screen.availWidth / 2 - width / 2);
    var y = parseInt(screen.availHeight / 2 - height / 2);
    var windowFeatures = "width=" + width + ",height=" + height + ",left=" + x + ",screenX=" + x + ",top=" + y + ",screenY=" + y;
    var openWindow = this.open(href, "Popup", windowFeatures);
}
 
window.onload = function(){
    fixLinks();
    hideDivs("intro");
    //sendFocus("navIntro");
}