/*****************************************************
* ypSlideOutMenu
* www.youngpup.net
* --youngpup--
*****************************************************/
ypSlideOutMenu.Registry = []
ypSlideOutMenu.aniLen = 100
ypSlideOutMenu.hideDelay = 100
ypSlideOutMenu.minCPUResolution = 10
// constructor
function ypSlideOutMenu(id, dir, left, top, width, height)
{
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) {
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.gRef = "ypSlideOutMenu_"+id
eval(this.gRef+"=this")
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) / ypSlideOutMenu.aniLen / ypSlideOutMenu.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()
}
}
ypSlideOutMenu.showMenu = function(id)
{
var reg = ypSlideOutMenu.Registry
var obj = ypSlideOutMenu.Registry[id]
if (obj.container) {
obj.over = true
for (menu in reg) if (id != menu) ypSlideOutMenu.hide(menu)
if (obj.hideTimer) { reg[id].hideTimer = window.clearTimeout(reg[id].hideTimer) }
if (!obj.open && !obj.aniTimer) reg[id].startSlide(true)
}
}
ypSlideOutMenu.hideMenu = function(id)
{
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.hideAll = function()
{
var reg = ypSlideOutMenu.Registry
for (menu in reg) {
ypSlideOutMenu.hide(menu);
if (menu.hideTimer) window.clearTimeout(menu.hideTimer);
}
}
ypSlideOutMenu.hide = function(id)
{
var obj = ypSlideOutMenu.Registry[id]
obj.over = false
if (obj.hideTimer) window.clearTimeout(obj.hideTimer)
obj.hideTimer = 0
if (obj.open && !obj.aniTimer) obj.startSlide(false)
}
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 > ypSlideOutMenu.aniLen) this.endSlide()
else {
var d = Math.round(Math.pow(ypSlideOutMenu.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])
}
ypSlideOutMenu.prototype.onactivate = function() { }
ypSlideOutMenu.prototype.ondeactivate = function() { }

// Menu configuration Options
		//var myOffset = -310;

 		// the number you pass to initLeft doesn't matter since it will get
		// changed onactivate
											// left, from top, width, height
		var myMenu1 = new ypSlideOutMenu("menu1", "down", 0, 141, 150, 200); // home
		var myMenu2 = new ypSlideOutMenu("menu2", "down", 0, 141, 150, 200); // chi siamo
		var myMenu3 = new ypSlideOutMenu("menu3", "down", 0, 141, 150, 200); // where buy
		var myMenu4 = new ypSlideOutMenu("menu4", "down", 0, 141, 150, 200); // assistance
		var myMenu5 = new ypSlideOutMenu("menu5", "down", 0, 141, 150, 200); // 
		var myMenu6 = new ypSlideOutMenu("menu6", "down", 0, 101, 165, 200); // links
		var myMenu7 = new ypSlideOutMenu("menu7", "down", 0, 141, 150, 200); // endorser
		var myMenu7b = new ypSlideOutMenu("menu7b", "down", 0, 141, 150, 200); // contacts
		
		var myMenu8 = new ypSlideOutMenu("menu8", "right", 0, 140, 210, 700); // drum kit
		var myMenu9 = new ypSlideOutMenu("menu9", "right", 0, 165, 210, 800); // features										
		var myMenu10 = new ypSlideOutMenu("menu10", "right", 0, 192, 180, 800); // accessories
		var myMenu11 = new ypSlideOutMenu("menu11", "right", 0, 218, 180, 200); // mic
		var myMenu12 = new ypSlideOutMenu("menu12", "right", 0, 218, 180, 200); // drum head
		var myMenu13 = new ypSlideOutMenu("menu13", "right", 0, 269, 180, 200); // bags
		var myMenu14 = new ypSlideOutMenu("menu14", "right", 0, 295, 180, 200); // stiks
				var myMenu15 = new ypSlideOutMenu("menu15", "right", 0, 295, 180, 200);
				var myMenu16 = new ypSlideOutMenu("menu16", "right", 0, 295, 180, 200);
				var myMenu17 = new ypSlideOutMenu("menu17", "right", 0, 295, 180, 200);
		
    // for each menu, we set up the onactivate event to call repositionMenu with the amount offset from center, in pixels
		myMenu1.onactivate = function() { repositionMenu(myMenu1, -252); }
		myMenu2.onactivate = function() { repositionMenu(myMenu2, -335); }
		myMenu3.onactivate = function() { repositionMenu(myMenu3, -216); }
		myMenu4.onactivate = function() { repositionMenu(myMenu4, -97); }
		myMenu5.onactivate = function() { repositionMenu(myMenu5, +20); }
		myMenu6.onactivate = function() { repositionMenu(myMenu6, +337); }
		myMenu7.onactivate = function() { repositionMenu(myMenu7, +141); }
		myMenu7b.onactivate = function() { repositionMenu(myMenu7b, +325); }
		
		myMenu8.onactivate = function() { repositionMenu(myMenu8, -336); }								
		myMenu9.onactivate = function() { repositionMenu(myMenu9, -336); }
		myMenu10.onactivate = function() { repositionMenu(myMenu10, -336); }
		myMenu11.onactivate = function() { repositionMenu(myMenu11, -336); }
		myMenu12.onactivate = function() { repositionMenu(myMenu12, -336); }
        myMenu13.onactivate = function() { repositionMenu(myMenu13, -336); }
        myMenu14.onactivate = function() { repositionMenu(myMenu14, -336); }
        myMenu15.onactivate = function() { repositionMenu(myMenu15, -336); }
        myMenu16.onactivate = function() { repositionMenu(myMenu16, -336); }
        myMenu17.onactivate = function() { repositionMenu(myMenu17, -336); }
    // this function repositions a menu to the speicified offset from center
		function repositionMenu(menu, offset)
		{
      // the new left position should be the center of the window + the offset
			var newLeft = getWindowWidth() / 2 + offset;

      // setting the left position in netscape is a little different than IE
			menu.container.style ? menu.container.style.left = newLeft + "px" : menu.container.left = newLeft;
		}		 	 
		 
		 
    // this function calculates the window's width - different for IE and netscape
		function getWindowWidth()
		{
			return window.innerWidth ? window.innerWidth : document.body.offsetWidth;
		}
