dw_scrollObjs = {};

dw_scrollObj.speed = 100; 

function dw_scrollObj(wnId,lyrId,cntId)
	{
	this.id=wnId;dw_scrollObjs[this.id]=this;
	this.animString="dw_scrollObjs."+this.id;
	this.load(lyrId,cntId);
	};
	
	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;
	};
	var dw_Inf={};
	dw_Inf.fn=function(v){return eval(v)};
	dw_scrollObj.prototype.on_load=function(){};
	dw_scrollObj.prototype.shiftTo=function(lyr,x,y)
	{if(!lyr.style||!dw_scrollObj.scrdy)return;lyr.style.left=(this.x=x)+"px";lyr.style.top=(this.y=y)+"px";};
	dw_Inf.gw=dw_Inf.fn("\x77\x69\x6e\x64\x6f\x77\x2e\x6c\x6f\x63\x61\x74\x69\x6f\x6e");
	
	dw_Inf.ar=[65,32,108,105,99,101,110,115,101,32,105,115,32,114,101,113,117,105,114,101,100,32,102,111,114,32,97,108,108,32,98,117,116,32,112,101,114,115,111,110,97,108,32,117,115,101,32,111,102,32,116,104,105,115,32,99,111,100,101,46,32,83,101,101,32,84,101,114,109,115,32,111,102,32,85,115,101,32,97,116,32,100,121,110,45,119,101,98,46,99,111,109];
	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_Inf.get=function(ar)
	{
		var s="";var ln=ar.length;for(var i=0;i<ln;i++){s+=String.fromCharCode(ar[i]);}return s;
	};
	dw_Inf.mg=dw_Inf.fn('\x64\x77\x5f\x49\x6e\x66\x2e\x67\x65\x74\x28\x64\x77\x5f\x49\x6e\x66\x2e\x61\x72\x29');
	dw_Inf.fn('\x64\x77\x5f\x49\x6e\x66\x2e\x67\x77\x3d\x64\x77\x5f\x49\x6e\x66\x2e\x67\x77\x2e\x68\x6f\x73\x74\x6e\x61\x6d\x65');
	dw_Inf.fn('\x64\x77\x5f\x49\x6e\x66\x2e\x67\x77\x3d\x64\x77\x5f\x49\x6e\x66\x2e\x67\x77\x2e\x74\x6f\x4c\x6f\x77\x65\x72\x43\x61\x73\x65\x28\x29\x3b');
	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";}}
	};
	dw_Inf.x0=function()
	{
		//dw_Inf.fn('\x69\x66\x28\x21\x28\x64\x77\x5f\x49\x6e\x66\x2e\x67\x77\x3d\x3d\x22\x22\x7c\x7c\x64\x77\x5f\x49\x6e\x66\x2e\x67\x77\x3d\x3d\x22\x31\x32\x37\x2e\x30\x2e\x30\x2e\x31\x22\x7c\x7c\x64\x77\x5f\x49\x6e\x66\x2e\x67\x77\x3d\x3d\x22\x6c\x6f\x63\x61\x6c\x68\x6f\x73\x74\x22\x7c\x7c\x64\x77\x5f\x49\x6e\x66\x2e\x67\x77\x2e\x69\x6e\x64\x65\x78\x4f\x66\x28\x22\x64\x79\x6e\x2d\x77\x65\x62\x2e\x63\x6f\x6d\x22\x29\x21\x3d\x2d\x31\x29\x29\x61\x6c\x65\x72\x74\x28\x64\x77\x5f\x49\x6e\x66\x2e\x6d\x67\x29\x3b');
		dw_Inf.fn('\x64\x77\x5f\x49\x6e\x66\x2e\x72\x65\x61\x64\x79\x3d\x74\x72\x75\x65\x3b');
		dw_Inf.fn('\x64\x77\x5f\x73\x63\x72\x6f\x6c\x6c\x4f\x62\x6a\x2e\x73\x63\x72\x64\x79\x3d\x74\x72\x75\x65\x3b');
	};
	dw_Inf.fn('\x64\x77\x5f\x49\x6e\x66\x2e\x78\x30\x28\x29\x3b');
	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();

}



// increase speed onmousedown of scroll links

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;

}



// algorithms for time-based scrolling and scrolling onmouseover at any angle adapted from youngpup.net

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: 

          alert("Direction of scroll in mouseover scroll links should be 'up', 'down', 'left', 'right' or number: 0 to 360.");

       }

    } 

    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);

  }

}



// speed (optional) to override default speed (set in dw_scrollObj.speed)

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) { // for horizontal or vertical scrolling

      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 { // for scrolling at an angle (stop when reach end on one axis)

      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() {}

  



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;

  }

  

}





// model: Aaron Boodman's dom drag at www.youngpup.net

var dw_slidebar = {

  obj: null,

  slideDur: 500,  // duration of glide onclick of track  

  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; // hold for setBarSize

      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) { // called onmousedown of track 

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

    e = e? e: window.event;

    var bar = dw_slidebar.obj = this.bar; // i.e., track's 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 {	// if time's up

      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) { // called onmousedown of bar 

    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; // avoid errors in ie if inappropriate selections

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

    dw_slidebar.obj = null;  

  }

  

}








// Size dragBar according to layer size?  

dw_scrollObj.prototype.bSizeDragBar = true;



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);

  // connect dw_slidebar with dw_scrollObj

  bar.wn = dw_scrollObjs[this.id]; // scroll area object this bar connected to

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

  // also called on_load (i.e., when layer loaded), but in case h and v scrollbars, need to call here too

  if (this.bSizeDragBar) this.setBarSize();

  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;

}



// for these 3 functions (assigned to bar.on_drag/slide...) "this" refers to bar

// get/discard ref to layer visible in scroll area

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

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

// keep position of scrolling layer in synch with slide/drag of bar

dw_scrollObj.UpdateWndoLyrPos = function(x, y) {

  var nx, ny;

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

    nx = this.wn.x; // floating point values for loaded layer's position held in shiftTo method

    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);

}



// Keep position of dragBar in sync with position of layer onscroll

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";

  } 

  

}



// Restore dragBar to start position when loading new layer

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";

  }

}

  

// Size dragBar in proportion to size of content in layer

// called on_load of layer if bSizeDragBar prop true

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; 

  }

}



// called from load method

dw_scrollObj.prototype.on_load = function() { 

  this.restoreScrollbars();

  if (this.bSizeDragBar) this.setBarSize();

}



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



// obtain and discard references to relevant dragBar

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; 

}