/*
Simple Image Trail script- By JavaScriptKit.com
Visit http://www.javascriptkit.com for this script and more
This notice must stay intact

Modified by Tim Kroeger (tim@breakmyzencart.com) for use with
image handler 2 and better cross browser functionality
*/

var offsetfrommouse=[10,10]; //image x,y offsets from cursor position in pixels. Enter 0,0 for no offset
var displayduration=0; //duration in seconds image should remain visible. 0 for always.
var currentimageheight = 400;	// maximum image size.
var padding=10; // padding must by larger than specified div padding in stylessheet

// Global variables for sizes of hoverimg
// Defined in "showtrail()", used in "followmouse()"
var zoomimg_w=0;
var zoomimg_h=0;


if (document.getElementById || document.all){
  document.write('<div id="trailimageid">');
  document.write('</div>');
}

function getObj(name) {
  if (document.getElementById) {
  	  this.obj = document.getElementById(name);
    this.style = document.getElementById(name).style;
  } else if (document.all) {
    this.obj = document.all[name];
    this.style = document.all[name].style;
  } else if (document.layers) {
    this.obj = document.layers[name];
    this.style = document.layers[name];
  }
}

function gettrail(){
  return new getObj("trailimageid");
}

function truebody(){
  return (!window.opera && document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function showtrail(imagename,title,oriwidth,oriheight,zoomimgwidth,zoomimgheight, image, startx, starty, startw, starth){
	zoomimg_w=zoomimgwidth;
	zoomimg_h=zoomimgheight;
  //if (oriwidth > 0){ offsetfrommouse[0] = oriwidth; }
  //if (oriheight > 0){ offsetfrommouse[1] = -1 *(zoomimgheight-oriheight)/2 - 40; }
  // alert (offsetfrommouse[0] + "," + offsetfrommouse[1]);
  if (zoomimgheight > 0){ currentimageheight = zoomimgheight; }
  trailobj = gettrail().obj;
  trailobj.style.width=(zoomimgwidth+(2*padding))+"px";
  trailobj.style.height=(zoomimgheight+(2*padding))+"px";
  trailobj.setAttribute("startx", startx);
  trailobj.setAttribute("starty", starty);
  trailobj.setAttribute("startw", startw);
  trailobj.setAttribute("starth", starth);
  trailobj.setAttribute("imagename", imagename);
  trailobj.setAttribute("imgtitle", title);
  document.onmousemove=followmouse;
}

function hidetrail(){
  trailstyle = gettrail().style;
  trailstyle.visibility = "hidden";
  document.onmousemove = "";
  trailstyle.left = "-2000px";
  trailstyle.top = "-2000px";
}

function followmouse(e){

  var xcoord=offsetfrommouse[0];
  var ycoord=offsetfrommouse[1];

  var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth-15;
  var docheight=document.all? Math.min(truebody().scrollHeight, truebody().clientHeight) : Math.min(window.innerHeight);

  //if (document.all){
  //	trail.obj.innerHTML = 'A = ' + truebody().scrollHeight + '<br>B = ' + truebody().clientHeight;
  //} else {
  //	trail.obj.innerHTML = 'C = ' + document.body.offsetHeight + '<br>D = ' + window.innerHeight;
  //}
  var relativeX = null;
  var relativeY = null;
	
  if (typeof e != "undefined"){
    if ((typeof e.layerX != "undefined") && (typeof e.layerY != "undefined")) {
      relativeX = e.layerX;
      relativeY = e.layerY;
    } else if ((typeof e.x != "undefined") && (typeof e.y != "undefined")) {
      relativeX = e.x;
      relativeY = e.y;
    }

    if (docwidth - e.pageX < zoomimg_w + (3 * padding)) {
      xcoord = e.pageX - xcoord - zoomimg_w - (2 * offsetfrommouse[0]);
    } else {
      xcoord += e.pageX;
    }
    if (docheight - e.pageY < zoomimg_h + (2 * padding)){
      ycoord += e.pageY - Math.max(0,(0 + zoomimg_h + (5 * padding) + e.pageY - docheight - truebody().scrollTop));
    } else {
      ycoord += e.pageY;
    }
  } else if (typeof window.event != "undefined"){
    if ((typeof event.x != "undefined") && (typeof event.y != "undefined")) {
      relativeX = event.x;
      relativeY = event.y;
    } else if ((typeof event.offsetX != "undefined") && (event.offsetY != "undefined")) {
      relativeX = event.offsetX;
      relativeY = event.offsetY;
    }

    if (docwidth - event.clientX < zoomimg_w + (3 * padding)) {
      xcoord = event.clientX - xcoord - zoomimg_w - (2 * offsetfrommouse[0]);
    } else {
      xcoord += truebody().scrollLeft+event.clientX;
    }
    if (docheight - event.clientY < zoomimg_h + (2 * padding)){
      ycoord += event.clientY - Math.max(0,(0 + zoomimg_h + (5 * padding) + event.clientY - docheight - truebody().scrollTop));
    } else {
      ycoord += truebody().scrollTop + event.clientY;
    }
  }

  trail = gettrail();
  startx    = trail.obj.getAttribute("startx");
  starty    = trail.obj.getAttribute("starty");
  startw    = trail.obj.getAttribute("startw");
  starth    = trail.obj.getAttribute("starth");
  imagename = trail.obj.getAttribute("imagename");
  title     = trail.obj.getAttribute("imgtitle");

  // calculate and set position BEFORE switching to visible
  var docwidth=document.all? truebody().scrollLeft+truebody().clientWidth : pageXOffset+window.innerWidth-15;
  var docheight=document.all? Math.max(truebody().scrollHeight, truebody().clientHeight) : Math.max(document.body.offsetHeight, window.innerHeight);
  if(ycoord < 0) { ycoord = ycoord*-1; }
  if ((trail.style.left == "-2000px") || (trail.style.left == "")) { trail.style.left=xcoord+"px"; }
  if ((trail.style.top == "-2000px") || (trail.style.top == "")) { trail.style.top=ycoord+"px"; }
  trail.style.left=xcoord+"px";
  trail.style.top=ycoord+"px";
//	alert (trail.style.left+","+trail.style.top);

  if (trail.style.visibility != "visible") {
    if (((relativeX == null) || (relativeY == null)) ||
      ((relativeX >= startx) && (relativeX <= (startx + startw))
      && (relativeY >= starty) && (relativeY <= (starty + starth)))){
      newHTML = '<div><h1>' + title + '</h1>';
      newHTML = newHTML + '<img src="' + imagename + '"></div>';
      trail.obj.innerHTML = newHTML;
      trail.style.visibility="visible";
    }
  }
}

/* ==== slider nameSpace ==== */
var slider = function() {
	/* ==== private methods ==== */
	function getElementsByClass(object, tag, className) {
		var o = object.getElementsByTagName(tag);
		for ( var i = 0, n = o.length, ret = []; i < n; i++) {
			if (o[i].className == className) ret.push(o[i]);
		}
		if (ret.length == 1) ret = ret[0];
		return ret;
	}
	function setOpacity (obj,o) {
		if (obj.filters) obj.filters.alpha.opacity = Math.round(o);
		else obj.style.opacity = o / 100;
	}
	/* ==== Slider Constructor ==== */
	function Slider(oCont, speed, iW, iH, oP) {
		this.slides = [];
		this.over   = false;
		this.S      = this.S0 = speed;
		this.iW     = iW;
		this.iH     = iH;
		this.oP     = oP;
		this.oc     = document.getElementById(oCont);
		this.frm    = getElementsByClass(this.oc, 'div', 'slide');
		this.NF     = this.frm.length;
		this.resize();
		for (var i = 0; i < this.NF; i++) {
			this.slides[i] = new Slide(this, i);
		}
		this.oc.parent = this;
		this.view      = this.slides[0];
		this.Z         = this.mx;
		/* ==== on mouse out event ==== */
		this.oc.onmouseout = function () {
			this.parent.mouseout();
			return false;
		}
	}
	Slider.prototype = {
		/* ==== animation loop ==== */
		run : function () {
			this.Z += this.over ? (this.mn - this.Z) * .5 : (this.mx - this.Z) * .5;
			this.view.calc();
			var i = this.NF;
			while (i--) this.slides[i].move();
		},
		/* ==== resize  ==== */
		resize : function () {
			this.wh = this.oc.clientWidth;
			this.ht = this.oc.clientHeight;
			this.wr = this.wh * this.iW;
			this.r  = this.ht / this.wr;
			this.mx = this.wh / this.NF;
			this.mn = (this.wh * (1 - this.iW)) / (this.NF - 1);
		},
		/* ==== rest  ==== */
		mouseout : function () {
			this.over      = false;
			setOpacity(this.view.img, this.oP);
		}
	}
	/* ==== Slide Constructor ==== */
	Slide = function (parent, N) {
		this.parent = parent;
		this.N      = N;
		this.x0     = this.x1 = N * parent.mx;
		this.v      = 0;
		this.loaded = false;
		this.cpt    = 0;
		this.start  = new Date();
		this.obj    = parent.frm[N];
		this.txt    = getElementsByClass(this.obj, 'div', 'text');
		this.img    = getElementsByClass(this.obj, 'img', 'diapo');
		this.bkg    = document.createElement('div');
		this.bkg.className = 'backgroundText';
		this.obj.insertBefore(this.bkg, this.txt);
		if (N == 0) this.obj.style.borderLeft = 'none';
		this.obj.style.left = Math.floor(this.x0) + 'px';
		setOpacity(this.img, parent.oP);
		/* ==== mouse events ==== */
		this.obj.parent = this;
		this.obj.onmouseover = function() {
			this.parent.over();
			return false;
		}
	}
	Slide.prototype = {
		/* ==== target positions ==== */
		calc : function() {
			var that = this.parent;
			// left slides
			for (var i = 0; i <= this.N; i++) {
				that.slides[i].x1 = i * that.Z;
			}
			// right slides
			for (var i = this.N + 1; i < that.NF; i++) {
				that.slides[i].x1 = that.wh - (that.NF - i) * that.Z;
			}
		},
		/* ==== HTML animation : move slides ==== */
		move : function() {
			var that = this.parent;
			var s = (this.x1 - this.x0) / that.S;
			/* ==== lateral slide ==== */
			if (this.N && Math.abs(s) > .5) {
				this.obj.style.left = Math.floor(this.x0 += s) + 'px';
			}
			/* ==== vertical text ==== */
			var v = (this.N < that.NF - 1) ? that.slides[this.N + 1].x0 - this.x0 : that.wh - this.x0;
			if (Math.abs(v - this.v) > .5) {
				this.bkg.style.top = this.txt.style.top = Math.floor(2 + that.ht - (v - that.Z) * that.iH * that.r) + 'px';
				this.v = v;
				this.cpt++;
			} else {
				if (!this.pro) {
					/* ==== adjust speed ==== */
					this.pro = true;
					var tps = new Date() - this.start;
					if(this.cpt > 1) {
						that.S = Math.max(2, (28 / (tps / this.cpt)) * that.S0);
					}
				}
			}
			if (!this.loaded) {
				if (this.img.complete) {
					this.img.style.visibility = 'visible';
					this.loaded = true;
				}
			}
		},
		/* ==== light ==== */
		over : function () {
			this.parent.resize();
			this.parent.over = true;
			setOpacity(this.parent.view.img, this.parent.oP);
			this.parent.view = this;
			this.start = new Date();
			this.cpt = 0;
			this.pro = false;
			this.calc();
			setOpacity(this.img, 100);
		}
	}
	/* ==== public method - script initialization ==== */
	return {
		init : function() { //alert('ddd');
			// create instances of sliders here
			// parameters : HTMLcontainer name, speed (2 fast - 20 slow), Horizontal ratio, vertical text ratio, opacity
			this.s1 = new Slider("slider", 12, 1.84/3, 1/3.2, 70);
			setInterval("slider.s1.run();", 16);
		}
	}
}();


function MM_jumpMenu(targ,selObj,restore){
  eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
  if (restore) selObj.selectedIndex=0;
}