var sEvent = {
	add: function(obj,type,fn) {
		if (obj.attachEvent) {
			obj['e'+type+fn] = fn;
			obj[type+fn] = function() { obj['e'+type+fn](window.event); }
			obj.attachEvent('on'+type,obj[type+fn]);
		} else
		obj.addEventListener(type,fn,false);
	},
	remove: function(obj,type,fn) {
		if (obj.detachEvent) {
			obj.detachEvent('on'+type,obj[type+fn]);
			obj[type+fn] = null;
		} else
		obj.removeEventListener(type,fn,false);
	},
  DOMit: function(e) { 
    e = e ? e: window.event;
    e.tgt = e.srcElement? e.srcElement: e.target;
    if (!e.preventDefault) e.preventDefault = function () { return false; }
    if (!e.stopPropagation) e.stopPropagation = function () { if (window.event) window.event.cancelBubble = true; }
    return e;
  }
}
var sViewport = {
  getWinWidth: function () {
    this.width = 0;
    if (window.innerWidth) this.width = window.innerWidth - 18;
    else if (document.documentElement && document.documentElement.clientWidth) 
  		this.width = document.documentElement.clientWidth;
    else if (document.body && document.body.clientWidth) 
  		this.width = document.body.clientWidth;
  },
  getWinHeight: function () {
    this.height = 0;
    if (window.innerHeight) this.height = window.innerHeight - 18;
  	else if (document.documentElement && document.documentElement.clientHeight) 
  		this.height = document.documentElement.clientHeight;
  	else if (document.body && document.body.clientHeight) 
  		this.height = document.body.clientHeight;
  },
  getScrollX: function () {
    this.scrollX = 0;
  	if (typeof window.pageXOffset == "number") this.scrollX = window.pageXOffset;
  	else if (document.documentElement && document.documentElement.scrollLeft)
  		this.scrollX = document.documentElement.scrollLeft;
  	else if (document.body && document.body.scrollLeft) 
  		this.scrollX = document.body.scrollLeft; 
  	else if (window.scrollX) this.scrollX = window.scrollX;
  },
  getScrollY: function () {
    this.scrollY = 0;    
    if (typeof window.pageYOffset == "number") this.scrollY = window.pageYOffset;
    else if (document.documentElement && document.documentElement.scrollTop)
  		this.scrollY = document.documentElement.scrollTop;
  	else if (document.body && document.body.scrollTop) 
  		this.scrollY = document.body.scrollTop; 
  	else if (window.scrollY) this.scrollY = window.scrollY;
  },
  getAll: function () {
    this.getWinWidth(); this.getWinHeight();
    this.getScrollX();  this.getScrollY();
  }
}
var sTip = {
sFollow: true, sOffX: 8, sOffY: 12, sTipID: "divTT", sDelayShow: 100, sDelayHide: 200,
ready:false,timer:null,tip:null,init:function(){
	if(document.createElement&&document.body&&
	typeof document.body.appendChild!="undefined"){
		if(!document.getElementById(this.sTipID)){
			var el=document.createElement("DIV");
			el.id=this.sTipID;
			document.body.appendChild(el);
			}
		this.ready=true;
	}
},show:function(e,msg){
	if(this.timer){
		clearTimeout(this.timer);
		this.timer=0;
	}
	this.tip=document.getElementById(this.sTipID);
	if(this.sFollow)
		sEvent.add(document,"mousemove",this.trackMouse,true);
	this.writeTip("");
	this.writeTip(msg);
	sViewport.getAll();
	this.positionTip(e);
	this.timer=setTimeout("sTip.toggleVis('"+this.sTipID+"', 'visible')",this.sDelayShow);
},writeTip:function(msg){
	if(this.tip&&typeof this.tip.innerHTML!="undefined")
		this.tip.innerHTML=msg;
},positionTip:function(e){
	if(this.tip&&this.tip.style){	
		var x=e.pageX?e.pageX:e.clientX+sViewport.scrollX;
		var y=e.pageY?e.pageY:e.clientY+sViewport.scrollY;
		if(x+this.tip.offsetWidth+this.sOffX>sViewport.width+sViewport.scrollX){
			x=x-this.tip.offsetWidth-this.sOffX;
			if(x<0)
				x=0;
		}
		else 
			x=x+this.sOffX;
		if(y+this.tip.offsetHeight+this.sOffY>sViewport.height+sViewport.scrollY){
			y=y-this.tip.offsetHeight-this.sOffY;
			if(y<sViewport.scrollY)
				y=sViewport.height+sViewport.scrollY-this.tip.offsetHeight;
		}
		else 
			y=y+this.sOffY;
		this.tip.style.left=x+"px";
		this.tip.style.top=y+"px";
	}
},hide:function(){
	if(this.timer){
		clearTimeout(this.timer);
		this.timer=0;
	}
	this.timer=setTimeout("sTip.toggleVis('"+this.sTipID+"', 'hidden')",this.sDelayHide);
	if(this.sFollow)
		sEvent.remove(document,"mousemove",this.trackMouse,true);
	this.tip=null;
},toggleVis:function(id,vis){
	var el=document.getElementById(id);
	if(el)
		el.style.visibility=vis;
},trackMouse:function(e){
	e=sEvent.DOMit(e);
	sTip.positionTip(e);
}};

//*****************************************************************************
function tipShow(e, msg) {
  if ( typeof sTip == "undefined" || !sTip.ready ) return;
  sTip.show(e, msg);
}

function tipHide() {
  if ( typeof sTip == "undefined" || !sTip.ready ) return;
  sTip.hide();
}

function tipSet(sObj,szText)
{
	if ( typeof(sObj) == "undefined" ) return;
	sEvent.add(sObj,"mouseover",function(){tipShow(event,this.toolData)});
	sEvent.add(sObj,"mouseout",tipHide);
	sObj.toolData = szText;
}