/* =================================================================================================
 * TransMenu 
 * March, 2003
 * Customizable multi-level animated DHTML menus with transparency.
 * =================================================================================================
 * "Can I use this?"
 * 
 * Use of this library is governed by the Creative Commons Attribution 2.0 License. You can check it 
 * out at: http://creativecommons.org/licenses/by/2.0/
 *
 * Basically: You may copy, distribute, and eat this code as you wish. But you must give me credit 
 * for writing it. You may not misrepresent yourself as the author of this code.
 * =================================================================================================
 * "It's kinda hard to read, though"
 *
 * The uncompressed, commented version of this script can be found at: 
 * http://youngpup.net/projects/transMenus
 * ============================================================================================== */

TransMenu.spacerGif="/infosoc/_layout/spacer.gif";
TransMenu.dingbatOn="";
TransMenu.dingbatOff="";
TransMenu.dingbatSize=14;
TransMenu.menuPadding=14;
TransMenu.itemPadding=4;
TransMenu.shadowSize=0;
TransMenu.shadowOffset=0;
TransMenu.shadowColor="#888";
//TransMenu.shadowPng="_gfx/grey-40.png";
TransMenu.backgroundColor="#F2D6AF";
//TransMenu.backgroundPng="_gfx/white-90.png";
TransMenu.hideDelay=100;
TransMenu.slideTime=0;
TransMenu.reference={topLeft:1,topRight:2,bottomLeft:3,bottomRight:4};
TransMenu.direction={down:1,right:2};
TransMenu.registry=[];
TransMenu._maxZ=100;


TransMenu.OffsetX=-5;
TransMenu.OffsetY=2;


TransMenu.isSupported=function(){var ua=navigator.userAgent.toLowerCase();
var pf=navigator.platform.toLowerCase();
var an=navigator.appName;
var r=false;
if(ua.indexOf("gecko")>-1&&navigator.productSub>=20020605)r=true;
else if(an=="Microsoft Internet Explorer"){if(document.getElementById){if(pf.indexOf("mac")==0){r=/msie (\d(.\d*)?)/.test(ua)&&Number(RegExp.$1)>=5.1;
}
else r=true;
	}
}
return r;
}
TransMenu.initialize=function(){for(var i=0,menu=null;
menu=this.registry[i];
i++){menu.initialize();
}}
TransMenu.renderAll=function(){var aMenuHtml=[];
for(var i=0, menu=null; menu=this.registry[i]; i++){
	aMenuHtml[i]=menu.toString();
}
document.write(aMenuHtml.join(""));
}
function TransMenu(oActuator,iDirection,iLeft,iTop,iReferencePoint,parentMenuSet){
this.addItem=addItem;
this.addMenu=addMenu;
this.toString=toString;
this.initialize=initialize;
this.isOpen=false;
this.show=show;
this.hide=hide;
this.items=[];
this.onactivate=new Function();
this.ondeactivate=new Function();
this.onmouseover=new Function();
this.onqueue=new Function();
this.ondequeue=new Function();
this.index=TransMenu.registry.length;
TransMenu.registry[this.index]=this;
var id="TransMenu"+this.index;
var contentHeight=null;
var contentWidth=null;
var childMenuSet=null;
var animating=false;
var childMenus=[];
var slideAccel=-1;
var elmCache=null;
var ready=false;
var _this=this;
var mTop;
var mBottom;
var mWidth;
var mHeight;

	
var a=null;
var pos=iDirection==TransMenu.direction.down?"top":"left";
var dim=null;
function hideSelectBoxes(mid) {
	
	iFrmOb=document.getElementById('iframe' + mid);
	if(iFrmOb) {
		iFrmOb.style.visibility="visible";
		iFrmOb.style.top=mTop;
		iFrmOb.style.left=mLeft;
		iFrmOb.style.width=mWidth-2;
		iFrmOb.style.height=mHeight-2;
		iFrmOb.style.zIndex=document.getElementById(mid).style.zIndex-1;
	}
}
function showSelectBoxes(mid) {
	
	iFrmOb=document.getElementById('iframe' + mid);
	if(iFrmOb) {
		iFrmOb.style.visibility="hidden";
		}
}

function addItem(sText,sUrl){var item=new TransMenuItem(sText,sUrl,this);
item._index=this.items.length;
this.items[item._index]=item;
}
function addMenu(oMenuItem){if(!oMenuItem.parentMenu==this)throw new Error("Cannot add a menu here");
if(childMenuSet==null)childMenuSet=new TransMenuSet(TransMenu.direction.right,TransMenu.OffsetX,TransMenu.OffsetY,TransMenu.reference.topRight);
var m=childMenuSet.addMenu(oMenuItem);
childMenus[oMenuItem._index]=m;
m.onmouseover=child_mouseover;
m.ondeactivate=child_deactivate;
m.onqueue=child_queue;
m.ondequeue=child_dequeue;
return m;
}
function initialize(){initCache();
initEvents();
initSize();
ready=true;
}
function show(){
	if(ready){
		_this.isOpen=true;
		animating=true;
		setContainerPos();
		elmCache["clip"].style.visibility="visible";		
		elmCache["clip"].style.zIndex=TransMenu._maxZ++;
		mTop=elmCache["clip"].offsetTop;
		mLeft=elmCache["clip"].offsetLeft;
		mHeight=elmCache["clip"].offsetHeight;
		mWidth=elmCache["clip"].offsetWidth;
		hideSelectBoxes(elmCache["clip"].id);	
		slideStart();
		_this.onactivate();
	}
}
function hide(){
	if(ready){
		_this.isOpen=false;
		animating=true;
		for(var i=0,item=null;item=elmCache.item[i];i++) dehighlight(item);
		if(childMenuSet)childMenuSet.hide();	
		showSelectBoxes(elmCache["clip"].id);
		slideStart();
		_this.ondeactivate();
		}
}
function setContainerPos(){var sub=oActuator.constructor==TransMenuItem;
var act=sub?oActuator.parentMenu.elmCache["item"][oActuator._index]:oActuator;
var el=act;
var x=0;
var y=0;
var minX=0;
var maxX=(window.innerWidth?window.innerWidth:document.body.clientWidth)-parseInt(elmCache["clip"].style.width);
var minY=0;
var maxY=(window.innerHeight?window.innerHeight:document.body.clientHeight)-parseInt(elmCache["clip"].style.height);
while(sub?el.parentNode.className.indexOf("transMenu")==-1:el.offsetParent){x+=el.offsetLeft;
y+=el.offsetTop;
if(el.scrollLeft)x-=el.scrollLeft;
if(el.scrollTop)y-=el.scrollTop;
el=el.offsetParent;
}
if(oActuator.constructor==TransMenuItem){x+=parseInt(el.parentNode.style.left);
y+=parseInt(el.parentNode.style.top);
}
switch(iReferencePoint){case TransMenu.reference.topLeft:break;
case TransMenu.reference.topRight:x+=act.offsetWidth;
break;
case TransMenu.reference.bottomLeft:y+=act.offsetHeight;
break;
case TransMenu.reference.bottomRight:x+=act.offsetWidth;
y+=act.offsetHeight;
break;
}
x+=iLeft;
y+=iTop;
x=Math.max(Math.min(x,maxX),minX);
y=Math.max(Math.min(y,maxY),minY);
elmCache["clip"].style.left=x+"px";
elmCache["clip"].style.top=y+"px";
}
function slideStart(){var x0=parseInt(elmCache["content"].style[pos]);
var x1=_this.isOpen?0:-dim;
if(a!=null)a.stop();
a=new Accelimation(x0,x1,TransMenu.slideTime,slideAccel);
a.onframe=slideFrame;
a.onend=slideEnd;
a.start();
}
function slideFrame(x){elmCache["content"].style[pos]=x+"px";
}
function slideEnd(){if(!_this.isOpen)elmCache["clip"].style.visibility="hidden";
animating=false;
}
function initSize(){var ow=elmCache["items"].offsetWidth;
var oh=elmCache["items"].offsetHeight;
var ua=navigator.userAgent.toLowerCase();
elmCache["clip"].style.width=ow+TransMenu.shadowSize+2+"px";
elmCache["clip"].style.height=oh+TransMenu.shadowSize+2+"px";
elmCache["content"].style.width=ow+TransMenu.shadowSize+"px";
elmCache["content"].style.height=oh+TransMenu.shadowSize+"px";
contentHeight=oh+TransMenu.shadowSize;
contentWidth=ow+TransMenu.shadowSize;
dim=iDirection==TransMenu.direction.down?contentHeight:contentWidth;
elmCache["content"].style[pos]=-dim-TransMenu.shadowSize+"px";
elmCache["clip"].style.visibility="hidden";
if(ua.indexOf("mac")==-1||ua.indexOf("gecko")>-1){elmCache["background"].style.width=ow+"px";
elmCache["background"].style.height=oh+"px";
elmCache["background"].style.backgroundColor=TransMenu.backgroundColor;
elmCache["shadowRight"].style.left=ow+"px";
elmCache["shadowRight"].style.height=oh-(TransMenu.shadowOffset-TransMenu.shadowSize)+"px";
elmCache["shadowRight"].style.backgroundColor=TransMenu.shadowColor;
elmCache["shadowBottom"].style.top=oh+"px";
elmCache["shadowBottom"].style.width=ow-TransMenu.shadowOffset+"px";
elmCache["shadowBottom"].style.backgroundColor=TransMenu.shadowColor;
}
else{elmCache["background"].firstChild.src=TransMenu.backgroundPng;
elmCache["background"].firstChild.width=ow;
elmCache["background"].firstChild.height=oh;
elmCache["shadowRight"].firstChild.src=TransMenu.shadowPng;
elmCache["shadowRight"].style.left=ow+"px";
elmCache["shadowRight"].firstChild.width=TransMenu.shadowSize;
elmCache["shadowRight"].firstChild.height=oh-(TransMenu.shadowOffset-TransMenu.shadowSize);
elmCache["shadowBottom"].firstChild.src=TransMenu.shadowPng;
elmCache["shadowBottom"].style.top=oh+"px";
elmCache["shadowBottom"].firstChild.height=TransMenu.shadowSize;
elmCache["shadowBottom"].firstChild.width=ow-TransMenu.shadowOffset;
}}
function initCache(){var menu=document.getElementById(id);
var all=menu.all?menu.all:menu.getElementsByTagName("*");
elmCache={};
elmCache["clip"]=menu;
elmCache["item"]=[];
for(var i=0,elm=null;
elm=all[i];
i++){switch(elm.className){case"items":case"content":case"background":case"shadowRight":case"shadowBottom":elmCache[elm.className]=elm;
break;
case"item":elm._index=elmCache["item"].length;
elmCache["item"][elm._index]=elm;
break;
}}
_this.elmCache=elmCache;
}
function initEvents(){for(var i=0,item=null;
item=elmCache.item[i];
i++){item.onmouseover=item_mouseover;
item.onmouseout=item_mouseout;
item.onclick=item_click;
}
if(typeof oActuator.tagName!="undefined"){oActuator.onmouseover=actuator_mouseover;
oActuator.onmouseout=actuator_mouseout;
}
elmCache["content"].onmouseover=content_mouseover;
elmCache["content"].onmouseout=content_mouseout;
}
function highlight(oRow){oRow.className="item hover";
if(childMenus[oRow._index])oRow.lastChild.firstChild.src=TransMenu.dingbatOn;
}
function dehighlight(oRow){oRow.className="item";
if(childMenus[oRow._index])oRow.lastChild.firstChild.src=TransMenu.dingbatOff;
}
function item_mouseover(){if(!animating){highlight(this);
if(childMenus[this._index])childMenuSet.showMenu(childMenus[this._index]);
else if(childMenuSet)childMenuSet.hide();
}}
function item_mouseout(){if(!animating){if(childMenus[this._index])childMenuSet.hideMenu(childMenus[this._index]);
else dehighlight(this);
}}
function item_click(){if(!animating){if(_this.items[this._index].url)location.href=_this.items[this._index].url;
}}
function actuator_mouseover(){parentMenuSet.showMenu(_this);
}
function actuator_mouseout(){parentMenuSet.hideMenu(_this);
}
function content_mouseover(){if(!animating){parentMenuSet.showMenu(_this);
_this.onmouseover();
}}
function content_mouseout(){if(!animating){parentMenuSet.hideMenu(_this);
}}
function child_mouseover(){if(!animating){parentMenuSet.showMenu(_this);
}}

function child_deactivate(){
	for(var i=0; i<childMenus.length;i++){
			if(childMenus[i]==this){
			dehighlight(elmCache["item"][i]);
			break;
			}
		}
	}
	
function child_queue(){parentMenuSet.hideMenu(_this);
}
function child_dequeue(){parentMenuSet.showMenu(_this);
}

function toString(){

	var aHtml=[];
	var sClassName="transMenu"+(oActuator.constructor!=TransMenuItem?" top":"");
	
	for( var i=0,item=null;  item=this.items[i];	i++){
		aHtml[i]=item.toString(childMenus[i]);
		
	}

//return'<div id="'+id+'" class="'+sClassName+'">'+'<div class="content"><table class="items" cellpadding="0" cellspacing="0" border="0">'+'<tr><td colspan="2"><img src="'+TransMenu.spacerGif+'" width="1" height="'+TransMenu.menuPadding+'"></td></tr>'+aHtml.join('')+'<tr><td colspan="2"><img src="'+TransMenu.spacerGif+'" width="1" height="'+TransMenu.menuPadding+'"></td></tr></table>'+'<div class="shadowBottom"><img src="'+TransMenu.spacerGif+'" style="width:1px;height:1px;"></div>'+'<div class="shadowRight"><img src="'+TransMenu.spacerGif+'" style="width:1px;height:1px;"></div>'+'<div class="background"><img src="'+TransMenu.spacerGif+'" style="width:1px;height:1px;"></div>'+'</div></div>';

if (aHtml.join('')!="") {

//return'<div id="'+id+'" class="'+sClassName+'">'+'<div class="content"><table class="items" cellpadding="0" cellspacing="0" border="0">'+'<tr><td colspan="2"><img src="'+TransMenu.spacerGif+'" width="1" height="'+TransMenu.menuPadding+'"></td></tr>'+aHtml.join('')+'<tr><td colspan="2"><img src="'+TransMenu.spacerGif+'" width="1" height="'+TransMenu.menuPadding+'"></td></tr></table>'+'<div class="shadowBottom"><img src="'+TransMenu.spacerGif+'" style="width:1px;height:1px;"></div>'+'<div class="shadowRight"><img src="'+TransMenu.spacerGif+'" style="width:1px;height:1px;"></div>'+'<div class="background"><img src="'+TransMenu.spacerGif+'" style="width:1px;height:1px;"></div>'+'</div></div>';
return '<div id="' + id + '" class="' + sClassName + '">' + 
	'<div class="content"><table class="items" cellpadding="0" cellspacing="0" border="0">' + 
	aHtml.join('') + 
	'</table>' + 
	'<div class="shadowBottom"><img src="' + TransMenu.spacerGif + '" style="width:1px;height:1px;"></div>' + 
	'<div class="shadowRight"><img src="' + TransMenu.spacerGif + '" style="width:1px;height:1px;"></div>' + 
	'<div class="background"><img src="' + TransMenu.spacerGif + '" style="width:1px;height:1px;"></div>' + 
	'</div></div>'+
	'<iframe id="iframe' + id + '" class="miframe" src="about:blank" frameborder="0"></iframe>';

}
else
{
return '<div id="' + id + '" class="' + sClassName + '" style="border:1px solid red; display:none">' + 
	'<div class="content"><table class="items" cellpadding="0" cellspacing="0" border="0">' + 
	'<tr><td style="align:right" colspan="2" valign="bottom"></td></tr>' + 
	'</table>' + 
	'<div class="shadowBottom"><img src="" style="width:1px;height:1px;"></div>' + 
	'<div class="shadowRight"><img src="" style="width:1px;height:1px;"></div>' + 
	'<div class="background"><img src="" style="width:1px;height:1px;"></div>' + 
	'</div></div>';
}
}

}
TransMenuSet.registry=[];
function TransMenuSet(iDirection,iLeft,iTop,iReferencePoint){this.addMenu=addMenu;
this.showMenu=showMenu;
this.hideMenu=hideMenu;
this.hide=hide;
this.hideCurrent=hideCurrent;
var menus=[];
var _this=this;
var current=null;
this.index=TransMenuSet.registry.length;
TransMenuSet.registry[this.index]=this;
function addMenu(oActuator){var m=new TransMenu(oActuator,iDirection,iLeft,iTop,iReferencePoint,this);
menus[menus.length]=m;
return m;
}
function showMenu(oMenu){if(oMenu!=current){if(current!=null)hide(current);
current=oMenu;
oMenu.show();
}
else{cancelHide(oMenu);
}}
function hideMenu(oMenu){if(current==oMenu&&oMenu.isOpen){if(!oMenu.hideTimer)scheduleHide(oMenu);
}}
function scheduleHide(oMenu){oMenu.onqueue();
oMenu.hideTimer=window.setTimeout("TransMenuSet.registry["+_this.index+"].hide(TransMenu.registry["+oMenu.index+"])",TransMenu.hideDelay);
}
function cancelHide(oMenu){if(oMenu.hideTimer){oMenu.ondequeue();
window.clearTimeout(oMenu.hideTimer);
oMenu.hideTimer=null;
}}
function hide(oMenu){if(!oMenu&&current)oMenu=current;
if(oMenu&&current==oMenu&&oMenu.isOpen){hideCurrent();
}}
function hideCurrent(){if (null != current){cancelHide(current);
current.hideTimer=null;
current.hide();
current=null;
}}}
function TransMenuItem(sText,sUrl,oParent){
this.toString=toString;
this.text=sText;
this.url=sUrl;
this.parentMenu=oParent;
function toString(bDingbat){

	var sDingbat=bDingbat?TransMenu.dingbatOff:TransMenu.spacerGif;
	var iEdgePadding=TransMenu.itemPadding+TransMenu.menuPadding;
	var sPaddingLeft="padding:"+TransMenu.itemPadding+"px; padding-left:"+iEdgePadding+"px;"
	var sPaddingRight="padding:"+TransMenu.itemPadding+"px; padding-right:"+iEdgePadding+"px;"
//return'<tr class="item"><td nowrap style="'+sPaddingLeft+'">'+sText+'</td><td width="14" style="'+sPaddingRight+'">'+'<img src="'+sDingbat+'" width="14" height="14"></td></tr>';
	return '<tr class="item"><td style="' + sPaddingLeft + '"><a href="'+sUrl+'">' + 
	sText + '</a></td><td width="14" style="' + sPaddingRight + '">' + 
	'</td></tr>'+
	'<tr><td colspan="2" class="menudots" height="1"><img src="/infosoc/_layout/spacer.gif" height="5" width="1" ></td></tr>';
	}
}
function Accelimation(from,to,time,zip){if(typeof zip=="undefined")zip=0;
if(typeof unit=="undefined")unit="px";
this.x0=from;
this.x1=to;
this.dt=time;
this.zip=-zip;
this.unit=unit;
this.timer=null;
this.onend=new Function();
this.onframe=new Function();
}
Accelimation.prototype.start=function(){this.t0=new Date().getTime();
this.t1=this.t0+this.dt;
var dx=this.x1-this.x0;
this.c1=this.x0+((1+this.zip)*dx/3);
this.c2=this.x0+((2+this.zip)*dx/3);
Accelimation._add(this);
}
Accelimation.prototype.stop=function(){Accelimation._remove(this);
}
Accelimation.prototype._paint=function(time){if(time<this.t1){var elapsed=time-this.t0;
this.onframe(Accelimation._getBezier(elapsed/this.dt,this.x0,this.x1,this.c1,this.c2));
}
else this._end();
}
Accelimation.prototype._end=function(){Accelimation._remove(this);
this.onframe(this.x1);
this.onend();
}
Accelimation._add=function(o){var index=this.instances.length;
this.instances[index]=o;
if(this.instances.length==1){this.timerID=window.setInterval("Accelimation._paintAll()",this.targetRes);
}}
Accelimation._remove=function(o){for(var i=0;
i<this.instances.length;
i++){if(o==this.instances[i]){this.instances=this.instances.slice(0,i).concat(this.instances.slice(i+1));
break;
}}
if(this.instances.length==0){window.clearInterval(this.timerID);
this.timerID=null;
}}
Accelimation._paintAll=function(){var now=new Date().getTime();
for(var i=0;i<this.instances.length;i++){
	this.instances[i]._paint(now);
	}
}
Accelimation._B1=function(t){return t*t*t}
Accelimation._B2=function(t){return 3*t*t*(1-t)}
Accelimation._B3=function(t){return 3*t*(1-t)*(1-t)}
Accelimation._B4=function(t){return(1-t)*(1-t)*(1-t)}
Accelimation._getBezier=function(percent,startPos,endPos,control1,control2){return endPos*this._B1(percent)+control2*this._B2(percent)+control1*this._B3(percent)+startPos*this._B4(percent);
}
Accelimation.instances=[];
Accelimation.targetRes=10;
Accelimation.timerID=null;

if(window.attachEvent){var cearElementProps=['data','onmouseover','onmouseout','onmousedown','onmouseup','ondblclick','onclick','onselectstart','oncontextmenu'];
window.attachEvent("onunload", function() {var el;
for(var d=document.all.length;d--;){
	el=document.all[d];
	for(var c=cearElementProps.length;c--;){
		el[cearElementProps[c]] = null;
		}
	}
	}
);
}