var d = document;
SlideMenu.Registry = []
SlideMenu.aniLen = 350;
SlideMenu.hideDelay = 0;
SlideMenu.minCPUResolution = 10;

function SlideMenu(id, dir, left, top, width, height) {
	this.ie = document.all ? 1 : 0;
	this.ns = document.layers ? 1 : 0;
	this.dom = document.getElementById ? 1 : 0;
	if (this.ie || this.ns || 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 = "SlideMenu_"+id;
		eval(this.gRef+"=this");
		SlideMenu.Registry[id] = this;
		var strCSS = '<style type="text/css">';
		strCSS += '#' + this.id + 'Container { visibility:visible; ';
		strCSS += 'left:' + left + 'px; ';
		strCSS += 'top:' + top + 'px; ';
		strCSS += 'overflow:hidden; }';
		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();
	}
}

SlideMenu.prototype.load = function() {
	var lyrId1 = this.id + "Container";
	var lyrId2 = this.id + "Content";
	var lyrId3 = this.id + "Point";
	var obj1 = this.dom ? d.getElementById(lyrId1) : this.ie ? d.all[lyrId1] : d.layers[lyrId1];
	if (obj1) {
		 var obj2 = this.ns ? obj1.layers[lyrId2] : this.ie ? d.all[lyrId2] : d.getElementById(lyrId2);
	}
	var obj3 =  this.dom ? d.getElementById(lyrId3) : this.ie ? d.all[lyrId3] : d.layers[lyrId3];
	var temp;
	if (!obj1 || !obj2|| !obj3) {
		window.setTimeout(this.gRef + ".load()", 100);
	}else {
		this.container = obj1;
		this.menu = obj2;
		this.point = obj3;
		this.style = this.ns ? this.menu : this.menu.style;
		this.homePos = eval("0" + this.dirType + this.dim);
		this.outPos = 0;
		this.accelConst = (this.outPos - this.homePos) / SlideMenu.aniLen / SlideMenu.aniLen ;
		if (this.ns){
			this.menu.captureEvents(Event.MOUSEOVER | Event.MOUSEOUT);
			this.point.captureEvents(Event.MOUSEOVER | Event.MOUSEOUT);
		}
		this.menu.onmouseover = new Function("SlideMenu.showMenu('" + this.id + "')");
		this.menu.onmouseout = new Function("SlideMenu.hideMenu('" + this.id + "')");
		this.point.onmouseover = new Function("SlideMenu.showMenu('" + this.id + "')");
		this.point.onmouseout = new Function("SlideMenu.hideMenu('" + this.id + "')");
		this.endSlide();
	}
}

SlideMenu.showMenu = function(id) {
	var reg = SlideMenu.Registry;
	var obj = SlideMenu.Registry[id];
	if (obj.container) {
		obj.over = true;
		for (menu in reg){
			if (id != menu) {
				SlideMenu.hide(menu);
			}
		}
		if (obj.hideTimer) {
			reg[id].hideTimer = window.clearTimeout(reg[id].hideTimer);
		}
		if (!obj.open && !obj.aniTimer) {
			reg[id].startSlide(true);
		}
	}
	if (id == "bodysize" || id == "spec" || id == "environment") {
		chLayersImage("/motor-lineup/common/images/navi_g_" + id  + "_on.gif", "navi_g_" + id , id +  "Point");
	} else {
		chLayersImage("/motor-lineup/common/images/navi_" + id  + "_over.gif", "navi_" + id , id +  "Point");
	}
}

SlideMenu.hideMenu = function(id) {
	var obj = SlideMenu.Registry[id];
	if (obj.container) {
		if (obj.hideTimer) {
			window.clearTimeout(obj.hideTimer);
		}
		obj.hideTimer = window.setTimeout("SlideMenu.hide('" + id + "')", SlideMenu.hideDelay);
	}
}

SlideMenu.hideAll = function() {
	var reg = SlideMenu.Registry;
	for (menu in reg) {
		SlideMenu.hide(menu);
		if (menu.hideTimer) {
			window.clearTimeout(menu.hideTimer);
		}
	}
}

SlideMenu.hide = function(id) {
	var obj = SlideMenu.Registry[id];
	obj.over = false;
	if (obj.hideTimer) {
		window.clearTimeout(obj.hideTimer);
	}
	obj.hideTimer = 0
	if (obj.open && !obj.aniTimer) {
		obj.startSlide(false);
	}
	if (id == "bodysize" || id == "spec" || id == "environment") {
		chLayersImage("/motor-lineup/common/images/navi_g_" + id  + "_off.gif", "navi_g_" + id , id +  "Point");
	} else {
		chLayersImage("/motor-lineup/common/images/navi_" + id  + "_off.gif", "navi_" + id , id +  "Point");
	}
}

SlideMenu.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()", SlideMenu.minCPUResolution);
}

SlideMenu.prototype.slide = function() {
	var elapsed = (new Date()).getTime() - this.startTime;
	if (elapsed > SlideMenu.aniLen) {
		this.endSlide();
	}else {
		var d = Math.round(Math.pow(SlideMenu.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);
	}
}

SlideMenu.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);
	}
}

SlideMenu.prototype.setVisibility = function(bShow) { 
	var s = this.ns ? this.container : this.container.style;
	s.visibility = bShow ? "visible" : "hidden";
}

SlideMenu.prototype.moveTo = function(p) { 
	this.style[this.orientation == "h" ? "left" : "top"] = this.ns ? p : p + "px";
}

SlideMenu.prototype.getPos = function(c) {
	return parseInt(this.style[c]);
}

SlideMenu.prototype.onactivate = function() { }
SlideMenu.prototype.ondeactivate = function() { }