/*
  dw_REVO_ToolTip.js   version date: March 2005
  requires dw_event.js and dw_viewport.js
  algorithm for time-based animation from youngpup.net
*/

var dw_event = {

  add: function(obj, etype, fp, cap) {
    cap = cap || false;
    if (obj.addEventListener) obj.addEventListener(etype, fp, cap);
    else if (obj.attachEvent) obj.attachEvent("on" + etype, fp);
  },

  remove: function(obj, etype, fp, cap) {
    cap = cap || false;
    if (obj.removeEventListener) obj.removeEventListener(etype, fp, cap);
    else if (obj.detachEvent) obj.detachEvent("on" + etype, fp);
  },

  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 viewport = {
  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 REVO_ToolTip = {
  followMouse: true,
  offX: 12,
  offY: 20,
  // duration of clipping animation
  showAni: 800,
  hideAni: 400,
  ID:"REVO_ToolTipDiv",
  ready:false,
  timer:null,
  tip:null,
  init:function(){
    var opok=(!window.opera||window.opera&&opera.buildNumber&&opera.buildNumber()>3800)?true:false;
    if(document.createElement&&document.body&&typeof document.body.appendChild!="undefined"&&opok){
      var el=document.createElement("DIV");
      el.id=this.ID;
      document.body.appendChild(el);
      this.showMult=el.offsetWidth/this.showAni/this.showAni;
      this.hideMult=el.offsetWidth/this.hideAni/this.hideAni;
      el.style.clip="rect(0, 0, 0, 0)";
      el.style.visibility="visible";
      this.ready=true;
//REVO_ToolTip.rtready=true;
      this.rtready=true;
    }
  },
  reveal:function(msg,e){
    if(this.timer){
      clearTimeout(this.timer);
      this.timer=0;
    }
    if(!this.rtready)return;
    this.tip=document.getElementById(this.ID);
    this.writeTip("");
    this.writeTip(msg);
    viewport.getAll();
    this.w=this.tip.offsetWidth;
    this.h=this.tip.offsetHeight;
    this.startTime=(new Date()).getTime();
    this.positionTip(e);
    if(this.followMouse)dw_event.add(document,"mousemove",this.trackMouse,true);
    this.timer=setInterval("REVO_ToolTip.rollOut()",10);
  },
  rollOut:function(){
    var elapsed=(new Date()).getTime()-this.startTime;
    if(elapsed<this.showAni){
      var cv=this.w-Math.round(Math.pow(this.showAni-elapsed,2)*this.showMult);
      this.clipTo(0,cv,this.h,0);
    }else{
      this.clipTo(0,this.w,this.h,0);
      clearInterval(this.timer);
      this.timer=0;
    }
  },
  conceal:function(){
    if(this.timer){
      clearTimeout(this.timer);
      this.timer=0;
    }
    this.startTime=(new Date()).getTime();
    if(this.followMouse)dw_event.remove(document,"mousemove",this.trackMouse,true);
    this.timer=setInterval("REVO_ToolTip.rollUp()",10);
  },
  rollUp:function(){
    var elapsed=(new Date()).getTime()-this.startTime;
    if(elapsed<this.hideAni){
      var cv=Math.round(Math.pow(this.hideAni-elapsed,2)*this.hideMult);
      this.clipTo(0,cv,this.h,0);
    }else{
      this.clipTo(0,0,this.h,0);
      clearInterval(this.timer);
      this.timer=0;this.tip=null;
    }
  },
  writeTip:function(msg){
    if(this.tip&&typeof this.tip.innerHTML!="undefined")this.tip.innerHTML=msg;
  },
  clipTo:function(top,rt,btm,lft){
    if(this.tip&&this.tip.style)this.tip.style.clip="rect("+top+"px, "+rt+"px, "+btm+"px, "+lft+"px)";
  }
};

REVO_ToolTip.positionTip=function(e){
  var x=e.pageX?e.pageX:e.clientX+viewport.scrollX;
  var y=e.pageY?e.pageY:e.clientY+viewport.scrollY;
  if(x+this.tip.offsetWidth+this.offX>viewport.width+viewport.scrollX){
    x=x-this.tip.offsetWidth-this.offX;
  }else x=x+this.offX;
  if(y+this.tip.offsetHeight+this.offY>viewport.height+viewport.scrollY){
    y=y-this.tip.offsetHeight-this.offY;
    if(y<viewport.scrollY)y=viewport.height+viewport.scrollY-this.tip.offsetHeight;
  }else y=y+this.offY;
  this.tip.style.left=x+"px";
  this.tip.style.top=y+"px";
};

REVO_ToolTip.trackMouse=function(e){
  e=dw_event.DOMit(e);
  REVO_ToolTip.positionTip(e);
};

// Pour la tooltip
function REVO_ToolTip_show(msg, e) {
  if ( typeof REVO_ToolTip == "undefined" || !REVO_ToolTip.ready ) return;
  REVO_ToolTip.reveal(msg, e);
}

function REVO_ToolTip_hide() {
  if ( typeof REVO_ToolTip == "undefined" || !REVO_ToolTip.ready ) return;
  REVO_ToolTip.conceal();
}