var directory = "/images/";
var navdir = "/images/nav/";
var placehoder = "blank.gif";

var curpage = "";
var fromCorner = "";
var setNavSrc = "";

var t;
function flipNavTimer() {
        t = window.setTimeout("flipNav()",100);
}


function flipx (objname,endname) {
    if (typeof endname == 'undefined') endname = '';
    if (objname != fromCorner) {
    var tmp = fromCorner;
    fromCorner = "";
    flip(tmp);
    var elem = document.getElementById(objname);
    if (elem) {
        var name = elem.src;
        if (name.match("blank") == "blank") {
            name = elem.imgname;
        }
        var urlparts = name.split("/");
        var img = urlparts[urlparts.length-1];
        var parts = img.split(".");
        if (elem.id != curpage) {
            if (parts[0].match("fade") == "fade" || parts[0].match("BIG4") == "BIG4" || parts[0].match("wquo")) {
                var end = "on";
                if (endname) {
                    end = endname;
                }
		        end = end + ".png";
		        elem.src = elem.imgroot + end;
		        elem.imgname = elem.imgroot + end;
            } else if (parts[0].match("on") == "on") {
                var end = "fade";
                if (endname){
                    end = endname;
                }
		        end = end + ".png";
		        elem.src = elem.imgroot + end;
		        elem.imgname = elem.imgroot + end;
            }
        }
    }
    }
}

function flip2(objname) {
    flip(objname);
    fromCorner = objname;
}

function flip3(objname) {
    fromCorner = "";
    flip(objname);
}

function setClassLeft(objname,leftvalue) {
    var obj = document.getElementById(objname);
    if (obj) {
        obj.style.left = leftvalue;
    }
}

function setClassTop(objname,topvalue) {
    var obj = document.getElementById(objname);
    if (obj) {
        obj.style.top = topvalue;
    }
}

function setNav (name) {
    setNavSrc = name;
    flipNav();
    // now set the nav bar
    var navbar = document.getElementById("navbar");
    if (navbar&&name!="") {
        navbar.src = directory+name+"bar.png";
    }

    var preload = new Array(5);
    
    // preload all the nav images for this section
    var hovers = new Array('discover','hire','join','contact','us','project','news');
    for (var i = 0; i < hovers.length; i++) {
        if (hovers[i] != name) {
            preload[i] = new Image();
            preload[i].src = navdir+name+"_"+hovers[i]+".png";
        }
    }
}