slide.Registry = []
slide.aniLen = 250
slide.hideDelay = 500
slide.minCPUResolution = 10

// var page = "";
// constructor
function slide(id, menu,  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.menuDiv = menu;
			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 = "slide_"+id
			eval(this.gRef+"=this")
			slide.Registry[id] = this
			var d = document
			var strCSS = '<style type="text/css">';
			strCSS += '#' + this.menuDiv + ' { visibility:hidden; '
			strCSS += 'margin-left:' + left + 'px; '
			strCSS += 'margin-top:' + top + 'px; '
			strCSS += 'overflow:hidden; z-index:1; }'
			strCSS += '#' + this.menuDiv + ' { 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()
			}
	}
	slide.prototype.load = function() {
			var d = document;
			var obj1 = this.dom ? d.getElementById(this.menuDiv) : this.ie ? d.all[this.menuDiv] : d.layers[this.menuDiv];
			if (obj1) var obj2 = this.ns4 ? obj1.layers[this.menuDiv] : this.ie ? d.all[this.menuDiv] : d.getElementById(this.menuDiv)
			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) / slide.aniLen / slide.aniLen
	
					// set event handlers.
					if (this.ns4) this.menu.captureEvents(Event.MOUSEOVER | Event.MOUSEOUT);
							this.menu.onmouseover = new Function("slide.showMenu('" + this.id + "')")
							this.menu.onmouseout = new Function("slide.hideMenu('" + this.id + "')")
	//set initial state
			this.endSlide()
			}
	}
	
	slide.showMenu = function(id){
			var reg = slide.Registry
			var obj = slide.Registry[id]
			if (obj.container) {
					obj.over = true
					for (menu in reg) if (id != menu) slide.hide(menu)
							if (obj.hideTimer) { reg[id].hideTimer = window.clearTimeout(reg[id].hideTimer) }
							if (!obj.open && !obj.aniTimer) reg[id].startSlide(true)
			}
	}
	slide.hideMenu = function(id){
			var obj = slide.Registry[id]
			if (obj.container) {
					if (obj.hideTimer) window.clearTimeout(obj.hideTimer)
					obj.hideTimer = window.setTimeout("slide.hide('" + id + "')", slide.hideDelay);
			}
	}
	
	slide.hideAll = function() {
			var reg = slide.Registry
			for (menu in reg) {
					slide.hide(menu);
					if (menu.hideTimer) window.clearTimeout(menu.hideTimer);
			}
	}
	
	slide.hide = function(id){
			var obj = slide.Registry[id]
			obj.over = false
			if (obj.hideTimer) window.clearTimeout(obj.hideTimer)
					obj.hideTimer = 0
			if (obj.open && !obj.aniTimer) obj.startSlide(false)
		rolltimer = window.setTimeout("navrolloff('" + id + "')", 150);
	}
	
	function navrolloff(slideid){
	
	}
	
	slide.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()", slide.minCPUResolution)
	}
	slide.prototype.slide = function() {
			var elapsed = (new Date()).getTime() - this.startTime
			if (elapsed > slide.aniLen) this.endSlide()
			else {
					var d = Math.round(Math.pow(slide.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)
			}
	}
	
	slide.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)
			}
}

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

slide.prototype.moveTo = function(p) {
    this.style[this.orientation == "h" ? "left" : "top"] = this.ns4 ? p : p + "px"
}

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

slide.prototype.onactivate = function() { }

slide.prototype.ondeactivate = function() { }

/* Page Slide menu */
  new slide('menu1', 'menu1content', 'down', 42, 25, 150, 40);
  new slide('menu2', 'menu2content', 'down', 100, 25, 150, 50);
  new slide('menu3', 'menu3content', 'down', 200, 25, 150, 50);
  new slide('menu4', 'menu4content', 'down', 140, 25, 150, 70);
  new slide('menu5', 'menu5content', 'down', 180, 25, 150, 40);
  new slide('menu6', 'menu6content', 'down', 220, 25, 150, 20);
  new slide('menu7', 'menu7content', 'down', 250, 25, 135, 20);


 function doClear(theText) {
       if (theText.value == theText.defaultValue)
        {
         theText.value = ""
        }
     }