/*****************************************************
 * ypSlideOutMenu
 * 3/04/2001
 *
 * a nice little script to create exclusive, slide-out
 * menus for ns4, ns6, mozilla, opera, ie4, ie5 on
 * mac and win32. I've got no linux or unix to test on but
 * it should(?) work...
 *
 * --youngpup--
 *
 *
 * UPDATE: This has worked on all common browsers on
 * all platforms.  I have modified the code some since
 * the date above, but only minor placement issues, etc.
 * 
 * --sadkinson (8/7/07)
 *****************************************************/

ypSlideOutMenu.Registry = [];
ypSlideOutMenu.aniLen = 300;
ypSlideOutMenu.hideDelay = 100;
ypSlideOutMenu.minCPUResolution = 10;

// constructor
function ypSlideOutMenu(id, dir, left, top, width, num_elements)
{
    this.ie  = (document.all ? 1 : 0);
    this.ns4 = (document.layers ? 1 : 0);
    this.dom = (document.getElementById ? 1 : 0);

    if (this.ie || this.ns4 || this.dom)
    {
        //interpret the height
        height = num_elements * heightOfEachElement + topBorderHeight;
        
        this.id          = id;
        this.dir         = dir;
        this.orientation = (dir == "left" || dir == "right" ? "h" : "v");
        this.dirType     = (dir == "right" || dir == "down" ? "-" : "+");
        this.dim         = (this.orientation == "h" ? width : height);
        this.hideTimer   = false;
        this.aniTimer    = false;
        this.open        = false;
        this.over        = false;
        this.startTime   = 0;
        this.aniLen      = ypSlideOutMenu.aniLen *(num_elements/5);
        
        // global reference to this object
        this.gRef = "ypSlideOutMenu_"+id;
        eval(this.gRef+"=this");

        // add this menu object to an internal list of all menus
        ypSlideOutMenu.Registry[id] = this;

        var d = document;

        var strCSS = '<style type="text/css">';
        strCSS += '#' + this.id + 'Container { visibility:hidden; ';
        strCSS += 'left:' + left + 'px; ';
        strCSS += 'top:' + top + 'px; ';
        strCSS += 'overflow:hidden; z-index:10000; }';
        strCSS += '#' + this.id + 'Container, #' + this.id + 'Content { position:absolute; ';
        strCSS += 'width:' + width + 'px; ';
        strCSS += 'height:' + height + 'px; ';
        strCSS += 'clip:rect(0 ' + width + ' ' + height + ' 0); ';
        strCSS += '}';
        strCSS += '</style>';

        d.write(strCSS);
        
        this.load();
    }
}

ypSlideOutMenu.prototype.load = function()
{
    var d = document;
    var lyrId1 = this.id + "Container";
    var lyrId2 = this.id + "Content";
    var obj1 = (this.dom ? d.getElementById(lyrId1) : (this.ie ? d.all[lyrId1] : d.layers[lyrId1]));
    if (obj1)
        var obj2 = (this.ns4 ? obj1.layers[lyrId2] : (this.ie ? d.all[lyrId2] : d.getElementById(lyrId2)));
    var temp;

    if (!obj1 || !obj2)
        window.setTimeout(this.gRef + ".load()", 100);
    else
    {
        this.container  = obj1;
        this.menu       = obj2;
        this.style      = (this.ns4 ? this.menu : this.menu.style);
        this.homePos    = eval("0" + this.dirType + this.dim);
        this.outPos     = 0;
        this.accelConst = (this.outPos - this.homePos) / this.aniLen / this.aniLen;

        // set event handlers.
        if (this.ns4)
            this.menu.captureEvents(Event.MOUSEOVER | Event.MOUSEOUT);
        this.menu.onmouseover = new Function("ypSlideOutMenu.showMenu('" + this.id + "')");
        this.menu.onmouseout = new Function("ypSlideOutMenu.hideMenu('" + this.id + "')");

        //set initial state
        this.endSlide(this.id);
    }
}

ypSlideOutMenu.showMenu = function(id)
{
    var reg = ypSlideOutMenu.Registry;
    var obj = ypSlideOutMenu.Registry[id];

    if (obj.container) {
        obj.over = true;

        // close other menus.
        for (menu in reg)
            if (id != menu)
                ypSlideOutMenu.hide(menu);

        // if this menu is scheduled to close, cancel it.
        if (obj.hideTimer)
            reg[id].hideTimer = window.clearTimeout(reg[id].hideTimer);

        // if this menu is closed, open it.
        if (!obj.open && !obj.aniTimer)
            reg[id].startSlide(true, id);
    }
}

ypSlideOutMenu.hideMenu = function(id)
{
    // schedules the menu to close after <hideDelay> ms, which
    // gives the user time to cancel the action if they accidentally moused out
    var obj = ypSlideOutMenu.Registry[id];
    if (obj.container) {
        if (obj.hideTimer) window.clearTimeout(obj.hideTimer);
        obj.hideTimer = window.setTimeout("ypSlideOutMenu.hide('" + id + "')", ypSlideOutMenu.hideDelay);
    }
}

ypSlideOutMenu.hide = function(id)
{
    var obj = ypSlideOutMenu.Registry[id];
    obj.over = false;

    if (obj.hideTimer)
        window.clearTimeout(obj.hideTimer);

    // flag that this scheduled event has occured.
    obj.hideTimer = 0;

    // if this menu is open, close it.
    if (obj.open && !obj.aniTimer)
        obj.startSlide(false, obj.id);
}

ypSlideOutMenu.prototype.startSlide = function(open) {
    this[open ? "onactivate" : "ondeactivate"]();
    this.open = open;
    if (open)
        this.setVisibility(true);
    this.startTime = (new Date()).getTime();
    this.aniTimer = window.setInterval(this.gRef + ".slide()", ypSlideOutMenu.minCPUResolution);
}

ypSlideOutMenu.prototype.slide = function() {

    var elapsed = (new Date()).getTime() - this.startTime;
    if (elapsed > this.aniLen)
        this.endSlide();
    else {
        var d = Math.round(Math.pow(this.aniLen-elapsed, 2) * this.accelConst);
        if (this.open && this.dirType == "-")
            d = -d;
        else if (this.open && this.dirType == "+")
            d = -d;
        else if (!this.open && this.dirType == "-")
            d = -this.dim + d;
        else
            d = this.dim + d;

        this.moveTo(d);
    }
}

ypSlideOutMenu.prototype.endSlide = function() {
    this.aniTimer = window.clearTimeout(this.aniTimer);
    this.moveTo(this.open ? this.outPos : this.homePos);
    if (!this.open)
        this.setVisibility(false);
    if ((this.open && !this.over) || (!this.open && this.over)) {
        this.startSlide(this.over);
    }
}

ypSlideOutMenu.prototype.setVisibility = function(bShow) {
    var s = (this.ns4 ? this.container : this.container.style);
    s.visibility = (bShow ? "visible" : "hidden");
}
ypSlideOutMenu.prototype.moveTo = function(p) {
    this.style[this.orientation == "h" ? "left" : "top"] = (this.ns4 ? p : p + "px");
}
ypSlideOutMenu.prototype.getPos = function(c) {
    return parseInt(this.style[c]);
}

// events
ypSlideOutMenu.prototype.onactivate     = function() { };
ypSlideOutMenu.prototype.ondeactivate   = function() { };



// Drop Down Menus: Edit to control positioning:
// Parameters: (Name, Direction, Left, Top, Width, NumberElements)
// the numbers you pass to "Left" and "Top" don't matter since they will get changed onactivate
var heightOfEachElement = 20+6; //the extra pix are for wrapping
var topBorderHeight = 1;

var ddm1 = new ypSlideOutMenu("webHosting", "down", 110,  98, 163, 5);
var ddm2 = new ypSlideOutMenu("webDevelopment", "down", 200, 98, 255, 12);
var ddm3 = new ypSlideOutMenu("webPromotion", "down", 418, 98, 192, 4);
var ddm4 = new ypSlideOutMenu("domains", "down",  641, 98, 192, 4);
var ddm5 = new ypSlideOutMenu("solutions", "down", 650, 98, 205, 6);
var ddm6 = new ypSlideOutMenu("services", "down", 418, 98, 195, 6);
var ddm7 = new ypSlideOutMenu("outsourcing", "down", 641, 98, 163, 8);

// The reposition function below may have been taken out if the dropdowns are left aligned not centered.
// Re-position menus to allow center layout:

    ddm1.onactivate = repositionMenu;
    ddm2.onactivate = repositionMenu;
    ddm3.onactivate = repositionMenu;
    ddm4.onactivate = repositionMenu;
    ddm5.onactivate = repositionMenu;
    ddm6.onactivate = repositionMenu;
   ddm7.onactivate = repositionMenu;

    function repositionMenu() {
        
        var topnavid;
        var ddm;
        
        switch(this.id)
        {
            case "webHosting":     ddm = ddm1; topnavid = "webHosting_topnav"; break;
            case "webDevelopment":        ddm = ddm2; topnavid = "webDevelopment_topnav"; break;
            case "webPromotion":      ddm = ddm3; topnavid = "webPromotion_topnav"; break;
            case "domains":  ddm = ddm4; topnavid = "domains_topnav"; break;
            case "solutions":         ddm = ddm5; topnavid = "solutions_topnav"; break;
           case "services":       ddm = ddm6; topnavid = "services_topnav"; break;
           case "outsourcing":         ddm = ddm7; topnavid = "outsourcing_topnav"; break;
        }
        
        //find the position of the given topnav and reposition the menu
        var loc = findPos(document.getElementById(topnavid));
        ddm.container.style ? ddm.container.style.left = loc[0] + "px" : ddm.container.left = loc[0];
        ddm.container.style ? ddm.container.style.top = loc[1] + "px" : ddm.container.top = loc[1];
        
    }


function ss(obj, status) {
    obj.className=(status==1)?"mi_on":"mi";
}


/**
 * This function finds the position of an element from the left of the screen.
 * It is used for finding where to place the ypSlideOutMenus above, and has one
 * or two tweaks for this purpose (for example, the add-pixels-in-IE snippet)
 * @param {Object} obj - the object to find the left position of
 */
function findPos(obj) {
    var curleft = curtop = 0;
    var objHeight = obj.offsetHeight;
    
    if (obj.offsetParent) {
        curleft = obj.offsetLeft;
        curtop = obj.offsetTop;
        while (obj = obj.offsetParent) {
            curleft += obj.offsetLeft;
            curtop += obj.offsetTop;
        }
    }
    
    //start the menu below the element
    curtop += objHeight;
    
    //alter placement in IE
    if (document.all) {
        curleft = curleft + 1; //for 1px left border on top_nav links
        curtop = curtop + 1; //for 1px top border on top_nav links
    }
    
    return [curleft,curtop];
}