/*************************************************************************
	dw_tooltip_rac.js (version date April 2004)
	
	This js file combines the three files dw_event.js, dw_viewport.js, 
	and dw_tooltip.js in the original distribution package.  As required, the
	notices from the original package are retained in the code as is!
**************************************************************************/

/*************************************************************************
    dw_event.js (version date Feb 2004)
        
    This code is from Dynamic Web Coding at http://www.dyn-web.com/
    See Terms of Use at http://www.dyn-web.com/bus/terms.html
    regarding conditions under which you may use this code.
    This notice must be retained in the code as is!
*************************************************************************/

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;
  }
  
}

/*************************************************************************
  dw_viewport.js  version date Nov 2003
  
  This code is from Dynamic Web Coding at http://www.dyn-web.com/
  Copyright 2003 by Sharon Paine 
  See Terms of Use at http://www.dyn-web.com/bus/terms.html
  regarding conditions under which you may use this code.
  This notice must be retained in the code as is!
*************************************************************************/  
  
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();
  }
  
}


/*************************************************************************
  
  dw_tooltip.js
  version date: Nov 2003
  requires: dw_event.js and dw_viewport.js
  
  This code is from Dynamic Web Coding at http://www.dyn-web.com/
  Copyright 2003 by Sharon Paine 
  See Terms of Use at http://www.dyn-web.com/bus/terms.html
  regarding conditions under which you may use this code.
  This notice must be retained in the code as is!

*************************************************************************/

var Tooltip = {
  followMouse: true,
  offX: 8,
  offY: 15,
  
  ready: false,
  t1: null,
  t2: null,
  tipID: "tipDiv",
  tip: null,
  
  init: function() {
    if ( document.createElement && document.body && typeof document.body.appendChild != "undefined" ) {
      var el = document.createElement("DIV");
      el.className = "tooltip";
      el.id = this.tipID;
      document.body.appendChild(el);
      this.ready = true;
    }
  },
  
  show: function(e, msg) {
    if (this.t1) clearTimeout(this.t1);	
  	if (this.t2) clearTimeout(this.t2); 
    this.tip = document.getElementById( this.tipID );
  	// set up mousemove 
  	if (this.followMouse) 
      dw_event.add( document, "mousemove", this.trackMouse, true );
    this.writeTip("");  // for mac ie
    this.writeTip(msg);
    viewport.getAll();
    this.positionTip(e);
  	this.t1 = setTimeout("document.getElementById('" + Tooltip.tipID + "').style.visibility = 'visible'",200);	
    },
    
    writeTip: function(msg) {
      if ( this.tip && typeof this.tip.innerHTML != "undefined" ) this.tip.innerHTML = msg;
    },
    
    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 > viewport.scrollY )? y - this.tip.offsetHeight - this.offY : viewport.height + viewport.scrollY - this.tip.offsetHeight;
      else y = y + this.offY;
  
      this.tip.style.left = x + "px"; this.tip.style.top = y + "px";
    },
    
    hide: function() {
      if (this.t1) clearTimeout(this.t1);	
    	if (this.t2) clearTimeout(this.t2); 
      this.t2 = setTimeout("document.getElementById('" + this.tipID + "').style.visibility = 'hidden'",200);
    	// release mousemove
    	if (this.followMouse) 
    		dw_event.remove( document, "mousemove", this.trackMouse, true );
      this.tip = null;
    },
    
    trackMouse: function(e) {
    	e = dw_event.DOMit(e);
     	Tooltip.positionTip(e);	
    }

}

Tooltip.init();

/*************************************************************************
  This code is from Dynamic Web Coding at http://www.dyn-web.com/
  Copyright 2003 by Sharon Paine 
  See Terms of Use at http://www.dyn-web.com/bus/terms.html
  regarding conditions under which you may use this code.
  This notice must be retained in the code as is!
*************************************************************************/

function initHoverTip() {
  if ( document.getElementById && document.getElementById(Tooltip.tipID) ) { 
    Tooltip.followMouse = false;  // must be turned off for this version
    var tip = document.getElementById(Tooltip.tipID)
    tip.onmouseout = function(e) { Tooltip.tipOutCheck(e) }
    tip.onmouseover = function() { Tooltip.clearTimer() }
  }
}

Tooltip.tipOutCheck = function(e) {
  e = dw_event.DOMit(e);
  // is element moused into contained by tooltip? or tooltip itself?
  var tooltip = document.getElementById(Tooltip.tipID);
  var toEl = e.relatedTarget? e.relatedTarget: e.toElement;
    if ( tooltip != toEl && !contained(toEl, tooltip) ) 
      Tooltip.hide();
}

// returns true of oNode is contained by oCont (container)
function contained(oNode, oCont) {
  if (!oNode) return; // in case alt-tab away while hovering (prevent error)
  while ( oNode.parentNode ) {
    oNode = oNode.parentNode;
    if ( oNode == oCont ) return true;
  }
  return false;
}

Tooltip.timerId = 0;
Tooltip.clearTimer = function() {
  if (Tooltip.timerId) clearTimeout(Tooltip.timerId);
}

initHoverTip();