Slider.Registry = [];
Slider.aniLen = 200;
Slider.hideDelay = 400;
Slider.minCPUResolution = 10;

function Slider(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 = "Slider_"+id;
		eval(this.gRef+"=this");

		Slider.Registry[id] = this;

		var d = document;

/*
		d.write('<style type="text/css">');
		d.write('#' + this.id + 'Lyr1 { visibility:hidden; ');
		d.write('left:' + left + 'px; ');
		d.write('top:' + top + 'px; ');
		d.write('float:left;');
		d.write('text-align:left;');
		d.write('width:740px;');
		d.write('margin:0px 0px 0px 0px;');
		d.write('padding:0px 0px 0px 0px;');
		d.write('overflow:hidden; }');
		d.write('#' + this.id + 'Lyr1, #' + this.id + 'Lyr2 { position:absolute; ');
		d.write('width:' + width + 'px; ');
		d.write('height:' + height + 'px; ');
		d.write('clip:rect(0 ' + width + ' ' + height + ' 0); ');
		d.write('float:left;');
		d.write('width:740px;');
		d.write('margin:0px 0px 0px 0px;');
		d.write('padding:0px 0px 0px 0px;');
		d.write('text-align:left;');
		d.write('}');
		d.write('</style>');
*/

		d.write('<style type="text/css">');
		d.write('#' + this.id + 'Lyr1 { visibility:hidden; ');
		d.write('top:' + top + 'px; ');
		d.write('text-align:center;');
		d.write('margin:0px 0px 0px 0px;');
		d.write('padding:0px 0px 0px 0px;');
		d.write('overflow:hidden; }');
		d.write('#' + this.id + 'Lyr1, #' + this.id + 'Lyr2 { position:absolute; ');
		d.write('width:' + width + 'px; ');
		d.write('height:' + height + 'px; ');
		d.write('clip:rect(0 ' + width + ' ' + height + ' 0); ');
		d.write('float:left;');
		d.write('width:800px;');
		d.write('margin:0px 0px 0px 34px;');
		d.write('padding:0px 0px 0px 33px;');
		d.write('text-align:left;');
		d.write('}');
		d.write('</style>');


		this.load();
	}
}

Slider.prototype.load = function() {
	var d = document;
	var lyrId1 = this.id + "Lyr1";
	var lyrId2 = this.id + "Lyr2";
	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) / Slider.aniLen / Slider.aniLen;

		if (this.ns4) this.menu.captureEvents(Event.MOUSEOVER | Event.MOUSEOUT);
		this.menu.onmouseover = new Function("Slider.overMenu('" + this.id + "')");
		this.menu.onmouseout = new Function("Slider.outMenu('" + this.id + "')");

		this.endSlide();
	}
}
	
Slider.overMenu = function(id) {
	// window.status = id;
	var reg = Slider.Registry;
	var obj = Slider.Registry[id];
	
	if (obj.container) {
		obj.over = true;
		for (menu in reg) if (id != menu) Slider.hide(menu);
		if (obj.hideTimer) {
			reg[id].hideTimer = window.clearTimeout(reg[id].hideTimer)
		}
		if (!obj.open && !obj.aniTimer) reg[id].startSlide(true);
	}
}

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

Slider.hide = function(id) {
	var obj = Slider.Registry[id];
	obj.over = false;
	if (obj.hideTimer) window.clearTimeout(obj.hideTimer);
	obj.hideTimer = 0;
	if (obj.open && !obj.aniTimer) obj.startSlide(false);
}

Slider.prototype.startSlide = function(open) {
	this.open = open;
	if (open) this.setVisibility(true);
	this.startTime = (new Date()).getTime();
	this.aniTimer = window.setInterval(this.gRef + ".slide()", Slider.minCPUResolution);
}

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

Slider.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);
	}
}

Slider.prototype.setVisibility = function(bShow) { 
	var s = this.ns4 ? this.container : this.container.style;
	s.visibility = bShow ? "visible" : "hidden";
}

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

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


/*new Slider("slide1", "down", 359, 89, 90, 48);*/
new Slider("slide1", "down", 100, 157, 400, 100);