// JavaScript Document

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

 *                                         				*

 *   version:  2.1                         				*

 *   author:   brando "dudzzzz"                       				*

 *   email:    joenasejes@yahoo.com     				*

 *   wep-page: http://joenasejes.110mb.com   	*

 *				                                         *

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



/* number of scrolling objects */

document.No = 0;



var isOpera = (window.navigator.userAgent.indexOf("Opera") > -1);



function ScrollLoad (Area, Content, SettingTracSize)

{

    var code = "var scroller" + document.No + " = new dw_scrollObj (Area, Content, Content, Area, document.No);";

    if (SettingTracSize)

        code += "scroller" + document.No + ".setBarSize();";

    eval (code);

    makeMouseWheeleScrolling(Area);

    document.No++;

}



/* <Mouse wheele scrolling> */

var mouseWheelTimer = 0;



function makeMouseWheeleScrolling(objName)

{

    var obj = document.getElementById(objName);



    if (obj.addEventListener)

    {

        obj.addEventListener("DOMMouseScroll", wheel, false);

    }

    obj.onmousewheel = wheel;

}



function moveUp(parent)

{

    dw_scrollObj.initScroll(parent.id, "up");

    clearInterval(mouseWheelTimer);

    mouseWheelTimer = setTimeout("mouseStop('" + parent.id + "');", 200);

}



function moveDown(parent)

{

    dw_scrollObj.initScroll(parent.id, "down");

    clearInterval(mouseWheelTimer);

    mouseWheelTimer = setTimeout("mouseStop('" + parent.id + "');", 200);

}



function mouseStop(parentId)

{

    dw_scrollObj.stopScroll(parentId);

    mouseWheelTimer = 0;

}



/* mouse wheel functions to scroll on mouse wheel efect over object with my js scrollbar */

function handle(delta, parent)

{

    var s = delta + ": ";

    if (delta < 0)

    {

		if (isOpera)

	        moveUp(parent);		

		else

	        moveDown(parent);

    }

    else

    {

		if (isOpera)

	        moveDown(parent);

		else

			moveUp(parent);

    }

}



function wheel(event)

{

    var delta = 0;

    if (!event) event = window.event;

    if (event.wheelDelta)

    {

        delta = event.wheelDelta/120; 

        if (window.opera) delta = -delta;

    }

    else if (event.detail)

    {

        delta = -event.detail/3;

    }

    if (delta)

        handle(delta, this);

}

/* </mouse wheele scrolling> */



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



dw_scrollObjs = {};



function dw_scrollObj(wnId,lyrId,cntId,area,No){

    dw_scrollObj.speed=100;

    this.id=wnId;

    dw_scrollObjs[this.id]=this;

    this.animString="dw_scrollObjs."+this.id;

    if(!this.write_scroll_bar(wnId,area,cntId,No)) return;

    this.load(lyrId,cntId);

    this.setUpScrollbar("drag_bar" + No, "track" + No, "v", 0, 0);    

};



dw_scrollObj.prototype.write_scroll_bar = function(content,where,text,No){

    where_obj   = document.getElementById(where);

    text_obj    = document.getElementById(text);

    content_obj = document.getElementById(content);

    if(text_obj.offsetHeight <= where_obj.offsetHeight){

        return false;

    }

    content_obj.style.overflow="hidden";

    var content_width = content_obj.offsetWidth;

    where_obj.innerHTML += '<div id="track' + No + '" class="track"><div id="drag_bar' + No + '" class="drag_bar"></div></div>';

    /* set text width */

    var scroll_width = document.getElementById('track' + No).offsetWidth;

    document.getElementById(text).style.width = content_width - scroll_width - 10 + 'px';

    return true;

}



dw_scrollObj.loadLayer = function(wnId,id,cntId){

    if(dw_scrollObjs[wnId])

        dw_scrollObjs[wnId].load(id,cntId);

};



dw_scrollObj.prototype.load = function(lyrId,cntId){

    if(!document.getElementById)

        return;

    var wndo,lyr;

    if(this.lyrId){

        lyr=document.getElementById(this.lyrId);

        lyr.style.visibility="hidden";

    }

    lyr=document.getElementById(lyrId);

    wndo=document.getElementById(this.id);

    lyr.style.top=this.y=0;

    lyr.style.left=this.x=0;

    this.maxY=(lyr.offsetHeight-wndo.offsetHeight>0)?lyr.offsetHeight-wndo.offsetHeight:0;

    this.wd=cntId?document.getElementById(cntId).offsetWidth:lyr.offsetWidth;

    this.maxX=(this.wd-wndo.offsetWidth>0)?this.wd-wndo.offsetWidth:0;

    this.lyrId=lyrId;

    lyr.style.visibility="visible";

    this.on_load();

    this.ready=true;

};



dw_scrollObj.prototype.on_load=function(){};

dw_scrollObj.prototype.shiftTo=function(lyr,x,y){

    if ((!lyr) || (!lyr.style))

        return;

    lyr.style.left=(this.x=x)+"px";

    lyr.style.top=(this.y=y)+"px";

};



dw_scrollObj.GeckoTableBugFix=function(){

    var ua=navigator.userAgent;

    if(ua.indexOf("Gecko")>-1&&ua.indexOf("Firefox")==-1&&ua.indexOf("Safari")==-1&&ua.indexOf("Konqueror")==-1){

        dw_scrollObj.hold=[];

        for(var i=0;arguments[i];i++){

            if(dw_scrollObjs[arguments[i]]){

                var wndo=document.getElementById(arguments[i]);

                var holderId=wndo.parentNode.id;

                var holder=document.getElementById(holderId);

                document.body.appendChild(holder.removeChild(wndo));

                wndo.style.zIndex=1000;

                var pos=getPageOffsets(holder);

                wndo.style.left=pos.x+"px";

                wndo.style.top=pos.y+"px";

                dw_scrollObj.hold[i]=[arguments[i],holderId];

            }

        }

        window.addEventListener("resize",dw_scrollObj.rePositionGecko,true);

    }

};



dw_scrollObj.rePositionGecko=function(){

    if(dw_scrollObj.hold){

        for(var i=0;dw_scrollObj.hold[i];i++){

            var wndo=document.getElementById(dw_scrollObj.hold[i][0]);

            var holder=document.getElementById(dw_scrollObj.hold[i][1]);

            var pos=getPageOffsets(holder);

            wndo.style.left=pos.x+"px";

            wndo.style.top=pos.y+"px";

        }

    }

};



function getPageOffsets(el){

    var left=el.offsetLeft;

    var top=el.offsetTop;

    if(el.offsetParent&&el.offsetParent.clientLeft||el.offsetParent.clientTop){

        left+=el.offsetParent.clientLeft;

        top+=el.offsetParent.clientTop;

    }

    while(el=el.offsetParent){

        left+=el.offsetLeft;

        top+=el.offsetTop;

    }

    return{x:left,y:top};

};



dw_scrollObj.stopScroll = function(wnId) {

  if ( dw_scrollObjs[wnId] ) dw_scrollObjs[wnId].endScroll();

}



dw_scrollObj.doubleSpeed = function(wnId) {

  if ( dw_scrollObjs[wnId] ) dw_scrollObjs[wnId].speed *= 2;

}



dw_scrollObj.resetSpeed = function(wnId) {

  if ( dw_scrollObjs[wnId] ) dw_scrollObjs[wnId].speed /= 2;

}



dw_scrollObj.initScroll = function(wnId, deg, sp) {

  if ( dw_scrollObjs[wnId] ) {

    var cosine, sine;

    if (typeof deg == "string") {

      switch (deg) {

        case "up"    : deg = 90;  break;

        case "down"  : deg = 270; break;

        case "left"  : deg = 180; break;

        case "right" : deg = 0;   break;

        default: return;

       }

    } 

    deg = deg % 360;

    if (deg % 90 == 0) {

      cosine = (deg == 0)? -1: (deg == 180)? 1: 0;

      sine = (deg == 90)? 1: (deg == 270)? -1: 0;

    } else {

      var angle = deg * Math.PI/180;

      cosine = -Math.cos(angle); sine = Math.sin(angle);

    }

    dw_scrollObjs[wnId].fx = cosine / ( Math.abs(cosine) + Math.abs(sine) );

    dw_scrollObjs[wnId].fy = sine / ( Math.abs(cosine) + Math.abs(sine) );

    dw_scrollObjs[wnId].endX = (deg == 90 || deg == 270)? dw_scrollObjs[wnId].x:

      (deg < 90 || deg > 270)? -dw_scrollObjs[wnId].maxX: 0; 

    dw_scrollObjs[wnId].endY = (deg == 0 || deg == 180)? dw_scrollObjs[wnId].y: 

      (deg < 180)? 0: -dw_scrollObjs[wnId].maxY;

    dw_scrollObjs[wnId].startScroll(sp);

  }

}



dw_scrollObj.prototype.startScroll = function(speed) {

  if (!this.ready) return; if (this.timerId) clearInterval(this.timerId);

  this.speed = speed || dw_scrollObj.speed;

  this.lyr = document.getElementById(this.lyrId);

  this.lastTime = ( new Date() ).getTime();

  this.on_scroll_start();  

  this.timerId = setInterval(this.animString + ".scroll()", 10); 

}



dw_scrollObj.prototype.scroll = function() {

  var now = ( new Date() ).getTime();

  var d = (now - this.lastTime)/1000 * this.speed;

  if (d > 0) {

    var x = this.x + this.fx * d; var y = this.y + this.fy * d;

    if (this.fx == 0 || this.fy == 0) {

      if ( ( this.fx == -1 && x > -this.maxX ) || ( this.fx == 1 && x < 0 ) || 

        ( this.fy == -1 && y > -this.maxY ) || ( this.fy == 1 && y < 0 ) ) {

        this.lastTime = now;

        this.shiftTo(this.lyr, x, y);

        this.on_scroll(x, y);

      } else {

        clearInterval(this.timerId); this.timerId = 0;

        this.shiftTo(this.lyr, this.endX, this.endY);

        this.on_scroll_end(this.endX, this.endY);

      }

    } else {

      if ( ( this.fx < 0 && x >= -this.maxX && this.fy < 0 && y >= -this.maxY ) ||

        ( this.fx > 0 && x <= 0 && this.fy > 0 && y <= 0 ) ||

        ( this.fx < 0 && x >= -this.maxX && this.fy > 0 && y <= 0 ) ||

        ( this.fx > 0 && x <= 0 && this.fy < 0 && y >= -this.maxY ) ) {

        this.lastTime = now;

        this.shiftTo(this.lyr, x, y);

        this.on_scroll(x, y);

      } else {

        clearInterval(this.timerId); this.timerId = 0;

        this.on_scroll_end(this.x, this.y);

      }

    }

  }

}



dw_scrollObj.prototype.endScroll = function() {

  if (!this.ready) return;

  if (this.timerId) clearInterval(this.timerId);

  this.timerId = 0;  this.lyr = null;

}



dw_scrollObj.prototype.on_scroll = function() {}

dw_scrollObj.prototype.on_scroll_start = function() {}

dw_scrollObj.prototype.on_scroll_end = function() {}

  

dw_scrollObj.slideDur = 500;



dw_scrollObj.scrollBy = function(wnId, x, y, dur) {

  if ( dw_scrollObjs[wnId] ) dw_scrollObjs[wnId].glideBy(x, y, dur);

}



dw_scrollObj.scrollTo = function(wnId, x, y, dur) {

  if ( dw_scrollObjs[wnId] ) dw_scrollObjs[wnId].glideTo(x, y, dur);

}



dw_scrollObj.prototype.glideBy = function(dx, dy, dur) {

  if ( !document.getElementById || this.sliding ) return;

  this.slideDur = dur || dw_scrollObj.slideDur;

  this.destX = this.destY = this.distX = this.distY = 0;

  this.lyr = document.getElementById(this.lyrId);

  this.startX = this.x; this.startY = this.y;

  if (dy < 0) this.distY = (this.startY + dy >= -this.maxY)? dy: -(this.startY  + this.maxY);

  else if (dy > 0) this.distY = (this.startY + dy <= 0)? dy: -this.startY;

  if (dx < 0) this.distX = (this.startX + dx >= -this.maxX)? dx: -(this.startX + this.maxX);

  else if (dx > 0) this.distX = (this.startX + dx <= 0)? dx: -this.startX;

  this.destX = this.startX + this.distX; this.destY = this.startY + this.distY;

  this.slideTo(this.destX, this.destY);

}



dw_scrollObj.prototype.glideTo = function(destX, destY, dur) {

    if ( !document.getElementById || this.sliding) return;

    this.slideDur = dur || dw_scrollObj.slideDur;

    this.lyr = document.getElementById(this.lyrId); 

    this.startX = this.x; this.startY = this.y;

    this.destX = -Math.max( Math.min(destX, this.maxX), 0);

    this.destY = -Math.max( Math.min(destY, this.maxY), 0);

    this.distY = this.destY - this.startY;

    this.distX =  this.destX - this.startX;

    this.slideTo(this.destX, this.destY);

}



dw_scrollObj.prototype.slideTo = function(destX, destY) {

    this.per = Math.PI/(2 * this.slideDur); this.sliding = true;

    this.slideStart = (new Date()).getTime();

    this.aniTimer = setInterval(this.animString + ".doSlide()",10);

    this.on_slide_start(this.startX, this.startY);

}



dw_scrollObj.prototype.doSlide = function() {

    var elapsed = (new Date()).getTime() - this.slideStart;

    if (elapsed < this.slideDur) {

        var x = this.startX + this.distX * Math.sin(this.per*elapsed);

        var y = this.startY + this.distY * Math.sin(this.per*elapsed);

        this.shiftTo(this.lyr, x, y); this.on_slide(x, y);

    } else {

        clearInterval(this.aniTimer); this.sliding = false;

        this.shiftTo(this.lyr, this.destX, this.destY);

        this.lyr = null; this.on_slide_end(this.destX, this.destY);

    }

}



dw_scrollObj.prototype.on_slide_start = function() {}

dw_scrollObj.prototype.on_slide = function() {}

dw_scrollObj.prototype.on_slide_end = function() {}



var dw_slidebar = {

  obj: null,

  slideDur: 500,

  init: function (bar, track, axis, x, y) {

    x = x || 0; y = y || 0;

    bar.style.left = x + "px"; bar.style.top = y + "px";

    bar.axis = axis; track.bar = bar;

    if (axis == "h") {

      bar.trkWd = track.offsetWidth;

      bar.maxX = bar.trkWd - bar.offsetWidth - x; 

      bar.minX = x; bar.maxY = y; bar.minY = y;

    } else {

      bar.trkHt = track.offsetHeight;

      bar.maxY = bar.trkHt - bar.offsetHeight - y; 

      bar.maxX = x; bar.minX = x; bar.minY = y;

    }

    bar.on_drag_start =  bar.on_drag =   bar.on_drag_end = 

    bar.on_slide_start = bar.on_slide =  bar.on_slide_end = function() {}

    bar.onmousedown = this.startDrag; track.onmousedown = this.startSlide;

  },

  

  startSlide: function(e) {

    if ( dw_slidebar.aniTimer ) clearInterval(dw_slidebar.aniTimer);

    e = e? e: window.event;

    var bar = dw_slidebar.obj = this.bar;

    e.offX = (typeof e.layerX != "undefined")? e.layerX: e.offsetX;

    e.offY = (typeof e.layerY != "undefined")? e.layerY: e.offsetY;

    bar.startX = parseInt(bar.style.left); bar.startY = parseInt(bar.style.top);

    if (bar.axis == "v") {

      bar.destX = bar.startX;

      bar.destY = (e.offY < bar.startY)? e.offY: e.offY - bar.offsetHeight;

      bar.destY = Math.min( Math.max(bar.destY, bar.minY), bar.maxY );

    } else {

      bar.destX = (e.offX < bar.startX)? e.offX: e.offX - bar.offsetWidth;

      bar.destX = Math.min( Math.max(bar.destX, bar.minX), bar.maxX );

      bar.destY = bar.startY;

    }

    bar.distX = bar.destX - bar.startX; bar.distY = bar.destY - bar.startY;

    dw_slidebar.per = Math.PI/(2 * dw_slidebar.slideDur);

    dw_slidebar.slideStart = (new Date()).getTime();

    bar.on_slide_start(bar.startX, bar.startY);

    dw_slidebar.aniTimer = setInterval("dw_slidebar.doSlide()",10);

  },

  

  doSlide: function() {

    if ( !dw_slidebar.obj ) { clearInterval(dw_slidebar.aniTimer); return; }    

    var bar = dw_slidebar.obj;     

    var elapsed = (new Date()).getTime() - this.slideStart;

    if (elapsed < this.slideDur) {

        var x = bar.startX + bar.distX * Math.sin(this.per*elapsed);

        var y = bar.startY + bar.distY * Math.sin(this.per*elapsed);

        bar.style.left = x + "px"; bar.style.top = y + "px";

        bar.on_slide(x, y);

    } else {

        clearInterval(this.aniTimer);

        bar.style.left = bar.destX + "px"; bar.style.top = bar.destY + "px";

        bar.on_slide_end(bar.destX, bar.destY);

        this.obj = null;

    }

  },

  

  startDrag: function (e) {

    e = dw_event.DOMit(e);

    if ( dw_slidebar.aniTimer ) clearInterval(dw_slidebar.aniTimer);

    var bar = dw_slidebar.obj = this;

    bar.downX = e.clientX; bar.downY = e.clientY;

    bar.startX = parseInt(bar.style.left);

    bar.startY = parseInt(bar.style.top);

    bar.on_drag_start(bar.startX, bar.startY);

    dw_event.add( document, "mousemove", dw_slidebar.doDrag, true );

    dw_event.add( document, "mouseup",   dw_slidebar.endDrag,  true );

    e.stopPropagation();

  },



  doDrag: function (e) {

    e = e? e: window.event;

    if (!dw_slidebar.obj) return;

    var bar = dw_slidebar.obj; 

    var nx = bar.startX + e.clientX - bar.downX;

    var ny = bar.startY + e.clientY - bar.downY;

    nx = Math.min( Math.max( bar.minX, nx ), bar.maxX);

    ny = Math.min( Math.max( bar.minY, ny ), bar.maxY);

    bar.style.left = nx + "px"; bar.style.top  = ny + "px";

    bar.on_drag(nx,ny);

    return false;  

  },

  

  endDrag: function () {

    dw_event.remove( document, "mousemove", dw_slidebar.doDrag, true );

    dw_event.remove( document, "mouseup",   dw_slidebar.endDrag,  true );

    if ( !dw_slidebar.obj ) return;

    dw_slidebar.obj.on_drag_end( parseInt(dw_slidebar.obj.style.left), parseInt(dw_slidebar.obj.style.top) );

    dw_slidebar.obj = null;  

  }

  

}



dw_scrollObj.prototype.setUpScrollbar = function(id, trkId, axis, offx, offy) {

  if (!document.getElementById) return;

  var bar = document.getElementById(id);

  var trk = document.getElementById(trkId);

  dw_slidebar.init(bar, trk, axis, offx, offy);

  bar.wn = dw_scrollObjs[this.id];

  if (axis == "v") this.vBarId = id; else this.hBarId = id;

  bar.on_drag_start = bar.on_slide_start = dw_scrollObj.getWndoLyrRef;

  bar.on_drag_end =   bar.on_slide_end =   dw_scrollObj.tossWndoLyrRef;

  bar.on_drag =       bar.on_slide =       dw_scrollObj.UpdateWndoLyrPos;

}



dw_scrollObj.getWndoLyrRef = function()  { this.wnLyr = document.getElementById(this.wn.lyrId); }

dw_scrollObj.tossWndoLyrRef = function() { this.wnLyr = null; }

dw_scrollObj.UpdateWndoLyrPos = function(x, y) {

  var nx, ny;

  if (this.axis == "v") {

    nx = this.wn.x;

    ny = -(y - this.minY) * ( this.wn.maxY / (this.maxY - this.minY) ) || 0;

  } else {

    ny = this.wn.y;

    nx = -(x - this.minX) * ( this.wn.maxX / (this.maxX - this.minX) ) || 0;

  }

  this.wn.shiftTo(this.wnLyr, nx, ny);

}



dw_scrollObj.prototype.updateScrollbar = function(x, y) {

  var nx, ny;

  if ( this.vBarId ) {

    if (!this.maxY) return;

    ny = -( y * ( (this.vbar.maxY - this.vbar.minY) / this.maxY ) - this.vbar.minY );

    ny = Math.min( Math.max(ny, this.vbar.minY), this.vbar.maxY);  

    nx = parseInt(this.vbar.style.left);

    this.vbar.style.left = nx + "px"; this.vbar.style.top = ny + "px";

  } if ( this.hBarId ) {

    if (!this.maxX) return;

    nx = -( x * ( (this.hbar.maxX - this.hbar.minX) / this.maxX ) - this.hbar.minX );

    nx = Math.min( Math.max(nx, this.hbar.minX), this.hbar.maxX);

    ny = parseInt(this.hbar.style.top);

    this.hbar.style.left = nx + "px"; this.hbar.style.top = ny + "px";

  } 

  

}



dw_scrollObj.prototype.restoreScrollbars = function() {

  var bar;

  if (this.vBarId) {

    bar = document.getElementById(this.vBarId);

    bar.style.left = bar.minX + "px"; bar.style.top = bar.minY + "px";

  }

  if (this.hBarId) {

    bar = document.getElementById(this.hBarId);

    bar.style.left = bar.minX + "px"; bar.style.top = bar.minY + "px";

  }

}

  

dw_scrollObj.prototype.setBarSize = function() {

  var bar;

  var lyr = document.getElementById(this.lyrId);

  var wn = document.getElementById(this.id);

  if (this.vBarId) {

    bar = document.getElementById(this.vBarId);

    bar.style.height = (lyr.offsetHeight > wn.offsetHeight)? bar.trkHt / ( lyr.offsetHeight / wn.offsetHeight ) + "px": bar.trkHt - 2*bar.minY + "px";

    bar.maxY = bar.trkHt - bar.offsetHeight - bar.minY; 

  }

  if (this.hBarId) {

    bar = document.getElementById(this.hBarId);

    bar.style.width = (this.wd > wn.offsetWidth)? bar.trkWd / ( this.wd / wn.offsetWidth ) + "px": bar.trkWd - 2*bar.minX + "px";

    bar.maxX = bar.trkWd - bar.offsetWidth - bar.minX; 

  }

}



dw_scrollObj.prototype.on_load = function() { 

  this.restoreScrollbars();

}



dw_scrollObj.prototype.on_scroll = dw_scrollObj.prototype.on_slide = function(x,y) { this.updateScrollbar(x,y); }



dw_scrollObj.prototype.on_scroll_start = dw_scrollObj.prototype.on_slide_start = function() {

  if ( this.vBarId ) this.vbar = document.getElementById(this.vBarId);

  if ( this.hBarId ) this.hbar = document.getElementById(this.hBarId);

}



dw_scrollObj.prototype.on_scroll_end = dw_scrollObj.prototype.on_slide_end = function(x, y) { 

  this.updateScrollbar(x,y);

  this.lyr = null; this.bar = null; 

}



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;

  }

  

}