/*************************************************************************
  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 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;
		}
	}
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;
  },
  getScrollYNow: function () {
    this.scrollYNow = 0;    
    if (typeof window.pageYOffset == "number") this.scrollYNow = window.pageYOffset;
    else if (document.documentElement && document.documentElement.scrollTop)
  		this.scrollYNow = document.documentElement.scrollTop;
  	else if (document.body && document.body.scrollTop) 
  		this.scrollYNow = document.body.scrollTop; 
  	else if (window.scrollY) this.scrollYNow = window.scrollY;
	this.scrollYM = this.scrollY - this.scrollYNow;
  },
  
  getAll: function () {
    this.getWinWidth(); this.getWinHeight();
    this.getScrollX();  this.getScrollY();
  }
  
}

var Tooltip = {
  followMouse: true,
  offX: -1,
  offY: 21,
  
  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,c) {
	if (c=='*1') colr = '#827026';
	if (c=='*2') colr = '#827026';
	if (msg=='*1') msg = 'Click to enlarge';
	if (msg=='*2') msg = 'Click to close';
    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 );
       dw_event.add( window, "scroll", this.trackMouse, true );
	  }
    this.writeTip("");  // for mac ie
    this.writeTip(msg);
    viewport.getAll();
    this.positionTip(e);
	this.tip.style.backgroundColor=colr;
  	this.t1 = setTimeout("document.getElementById('" + Tooltip.tipID + "').style.visibility = 'visible'",50);	
    },
    
    writeTip: function(msg) {
      if ( this.tip && typeof this.tip.innerHTML != "undefined" ) this.tip.innerHTML = msg;
    },
    
    positionTip: function(e) {
		viewport.getScrollYNow();
      var x = e.pageX? e.pageX: e.clientX + viewport.scrollX;
      var y = e.pageY? e.pageY: e.clientY + viewport.scrollY - viewport.scrollYM;

		try {
      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;

  y = y + this.offY;
      this.tip.style.left = x + "px"; this.tip.style.top = y + "px";
	  
		}
		catch (e) {
		this.hideNow();	
		}
    
      
	  
    },
    
    hide: function() {
      if (this.t1) clearTimeout(this.t1);	
    	if (this.t2) clearTimeout(this.t2);
      this.t2 = setTimeout("document.getElementById('" + this.tipID + "').style.visibility = 'hidden'",50);
    	// release mousemove
    	if (this.followMouse) {
    		dw_event.remove( document, "mousemove", this.trackMouse, true ); 
    		dw_event.remove( window, "scroll", this.trackMouse, true );
		}
      this.tip = null;
    },
	    hideNow: function() {
		
      if (this.t1) clearTimeout(this.t1);	
    	if (this.t2) clearTimeout(this.t2);
      document.getElementById(this.tipID).style.visibility = 'hidden';
    	// release mousemove
    	if (this.followMouse) {
    		dw_event.remove( document, "mousemove", this.trackMouse, true );
    		dw_event.remove( window, "scroll", this.trackMouse, true );
		}
      this.tip = null;
    },
    
    trackMouse: function(e) {
    	e = dw_event.DOMit(e);
     	Tooltip.positionTip(e);	
    }

}

Tooltip.init();