//Here comes the drop down menu.
vrmenuSlideOutMenu.Registry=[];
vrmenuSlideOutMenu.aniLen=200;
vrmenuSlideOutMenu.hideDelay=300;
vrmenuSlideOutMenu.minCPUResolution=10;

function vrmenuSlideOutMenu(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="vrmenuSlideOutMenu_"+id;
    eval(this.gRef+"=this");
    vrmenuSlideOutMenu.Registry[id]=this;
    var d=document;
    d.write('<style type="text/css">');
    d.write('#'+this.id+'Container { visibility:hidden; ');
    //d.write('left:'+left+'px; ');
    //d.write('top:'+top+'px; ');
    d.write('overflow:hidden; }');
    d.write('#'+this.id+'Container, #'+this.id+'Content { position: absolute; ')
    d.write('position:absolute; ');
    d.write('width:'+width+'px; ');
    d.write('height:'+height+'px; ');
    d.write('z-index:599; ');
    d.write('clip:rect(0 '+width+' '+height+' 0); ');
    d.write('}');
    d.write('</style>');
    this.load();
  }
}

vrmenuSlideOutMenu.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)/vrmenuSlideOutMenu.aniLen/vrmenuSlideOutMenu.aniLen 
    if (this.ns4) this.menu.captureEvents(Event.MOUSEOVER|Event.MOUSEOUT);
    this.menu.onmouseover=new Function("vrmenuSlideOutMenu.showMenu('"+this.id+"')")
    this.menu.onmouseout=new Function("vrmenuSlideOutMenu.hideMenu('"+this.id+"')")
    this.endSlide()
  }
}

vrmenuSlideOutMenu.showMenu=function(id) {
  var reg=vrmenuSlideOutMenu.Registry
  var obj=vrmenuSlideOutMenu.Registry[id]
  if (obj.container) {
    obj.over=true
    for (menu in reg) if (id!=menu) vrmenuSlideOutMenu.hide(menu)
    if (obj.hideTimer) { reg[id].hideTimer=window.clearTimeout(reg[id].hideTimer) }
    if (!obj.open&&!obj.aniTimer) reg[id].startSlide(true)
  }
}

vrmenuSlideOutMenu.hideMenu=function(id) {
  var obj=vrmenuSlideOutMenu.Registry[id]
  if (obj.container) {
    if (obj.hideTimer) window.clearTimeout(obj.hideTimer)
    obj.hideTimer=window.setTimeout("vrmenuSlideOutMenu.hide('"+id+"')",vrmenuSlideOutMenu.hideDelay);
  }
}

vrmenuSlideOutMenu.hide=function(id) {
  var obj=vrmenuSlideOutMenu.Registry[id]
  obj.over=false
  if (obj.hideTimer) window.clearTimeout(obj.hideTimer)
  obj.hideTimer=0
  if (obj.open&&!obj.aniTimer) obj.startSlide(false)
}

vrmenuSlideOutMenu.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()",vrmenuSlideOutMenu.minCPUResolution);
}

vrmenuSlideOutMenu.prototype.slide=function() {
  var elapsed=(new Date()).getTime()-this.startTime;
  if (elapsed>vrmenuSlideOutMenu.aniLen) this.endSlide()
  else {
    var d=Math.round(Math.pow(vrmenuSlideOutMenu.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);
  }
}

vrmenuSlideOutMenu.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);
  }
}

vrmenuSlideOutMenu.prototype.setVisibility=function(bShow) { 
  var s=this.ns4?this.container:this.container.style;
  s.visibility=bShow?"visible":"hidden";
}

vrmenuSlideOutMenu.prototype.moveTo=function(p) { 
  this.style[this.orientation=="h"?"left":"top"]=this.ns4?p:p+"px";
}

vrmenuSlideOutMenu.prototype.getPos=function(c) {
  return parseInt(this.style[c]);
}

vrmenuSlideOutMenu.prototype.onactivate=function() { }
vrmenuSlideOutMenu.prototype.ondeactivate=function() { }

//                     id,dir,left,top,width,height
new vrmenuSlideOutMenu('SM_Home','down',0,111,96,600);
new vrmenuSlideOutMenu('SM_Who','down',0,111,179,600);
new vrmenuSlideOutMenu('SM_What','down',0,111,168,600);
new vrmenuSlideOutMenu('SM_Vision','down',0,111,153,600);
new vrmenuSlideOutMenu('SM_News','down',0,111,94,600);
new vrmenuSlideOutMenu('SM_Join','down',0,111,111,600);


function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}
