//BB JavaScript Document
// VARS  -------------------------------------------------------------------------

var bb_ad_array

// DRAG FUNCTIONS  ---------------------------------------------------------------
var Drag = {

	obj : null,

	init : function(o, oRoot, minX, maxX, minY, maxY, bSwapHorzRef, bSwapVertRef, fXMapper, fYMapper)
	{
		o.onmousedown	= Drag.start;

		o.hmode			= bSwapHorzRef ? false : true ;
		o.vmode			= bSwapVertRef ? false : true ;

		o.root = oRoot && oRoot != null ? oRoot : o ;

		if (o.hmode  && isNaN(parseInt(o.root.style.left  ))) o.root.style.left   = "0px";
		if (o.vmode  && isNaN(parseInt(o.root.style.top   ))) o.root.style.top    = "0px";
		if (!o.hmode && isNaN(parseInt(o.root.style.right ))) o.root.style.right  = "0px";
		if (!o.vmode && isNaN(parseInt(o.root.style.bottom))) o.root.style.bottom = "0px";

		o.minX	= typeof minX != 'undefined' ? minX : null;
		o.minY	= typeof minY != 'undefined' ? minY : null;
		o.maxX	= typeof maxX != 'undefined' ? maxX : null;
		o.maxY	= typeof maxY != 'undefined' ? maxY : null;

		o.xMapper = fXMapper ? fXMapper : null;
		o.yMapper = fYMapper ? fYMapper : null;

		o.root.onDragStart	= new Function();
		o.root.onDragEnd	= new Function();
		o.root.onDrag		= new Function();
	},

	start : function(e)
	{
		var o = Drag.obj = this;
		e = Drag.fixE(e);
		var y = parseInt(o.vmode ? o.root.style.top  : o.root.style.bottom);
		var x = parseInt(o.hmode ? o.root.style.left : o.root.style.right );
		o.root.onDragStart(x, y);

		o.lastMouseX	= e.clientX;
		o.lastMouseY	= e.clientY;

		if (o.hmode) {
			if (o.minX != null)	o.minMouseX	= e.clientX - x + o.minX;
			if (o.maxX != null)	o.maxMouseX	= o.minMouseX + o.maxX - o.minX;
		} else {
			if (o.minX != null) o.maxMouseX = -o.minX + e.clientX + x;
			if (o.maxX != null) o.minMouseX = -o.maxX + e.clientX + x;
		}

		if (o.vmode) {
			if (o.minY != null)	o.minMouseY	= e.clientY - y + o.minY;
			if (o.maxY != null)	o.maxMouseY	= o.minMouseY + o.maxY - o.minY;
		} else {
			if (o.minY != null) o.maxMouseY = -o.minY + e.clientY + y;
			if (o.maxY != null) o.minMouseY = -o.maxY + e.clientY + y;
		}

		document.onmousemove	= Drag.drag;
		document.onmouseup		= Drag.end;

		return false;
	},

	drag : function(e)
	{
		e = Drag.fixE(e);
		var o = Drag.obj;

		var ey	= e.clientY;
		var ex	= e.clientX;
		var y = parseInt(o.vmode ? o.root.style.top  : o.root.style.bottom);
		var x = parseInt(o.hmode ? o.root.style.left : o.root.style.right );
		var nx, ny;

		if (o.minX != null) ex = o.hmode ? Math.max(ex, o.minMouseX) : Math.min(ex, o.maxMouseX);
		if (o.maxX != null) ex = o.hmode ? Math.min(ex, o.maxMouseX) : Math.max(ex, o.minMouseX);
		if (o.minY != null) ey = o.vmode ? Math.max(ey, o.minMouseY) : Math.min(ey, o.maxMouseY);
		if (o.maxY != null) ey = o.vmode ? Math.min(ey, o.maxMouseY) : Math.max(ey, o.minMouseY);

		nx = x + ((ex - o.lastMouseX) * (o.hmode ? 1 : -1));
		ny = y + ((ey - o.lastMouseY) * (o.vmode ? 1 : -1));

		if (o.xMapper)		nx = o.xMapper(y)
		else if (o.yMapper)	ny = o.yMapper(x)

		Drag.obj.root.style[o.hmode ? "left" : "right"] = nx + "px";
		Drag.obj.root.style[o.vmode ? "top" : "bottom"] = ny + "px";
		Drag.obj.lastMouseX	= ex;
		Drag.obj.lastMouseY	= ey;

		Drag.obj.root.onDrag(nx, ny);
		return false;
	},

	end : function()
	{
		document.onmousemove = null;
		document.onmouseup   = null;
		Drag.obj.root.onDragEnd(	parseInt(Drag.obj.root.style[Drag.obj.hmode ? "left" : "right"]), 
									parseInt(Drag.obj.root.style[Drag.obj.vmode ? "top" : "bottom"]));
		Drag.obj = null;
	},

	fixE : function(e)
	{
		if (typeof e == 'undefined') e = window.event;
		if (typeof e.layerX == 'undefined') e.layerX = e.offsetX;
		if (typeof e.layerY == 'undefined') e.layerY = e.offsetY;
		return e;
	}
};

// SCROLL FUNCTIONS ---------------------------------------------------------------------

var thumb = {
  init:   function() {
	  
    //   collect the variables
	
    thumb.docH = document.getElementById('bb_ad_list').offsetHeight;
    thumb.contH = document.getElementById('bb_ad_box').offsetHeight;
    thumb.scrollAreaH = document.getElementById('bb_thumb_box').offsetHeight;
      
    //   calculate height of thumb and resize the thumb's DIV
    //   (however, we make sure that it isn't too small for long pages)
	
    thumb.scrollH = (thumb.contH * thumb.scrollAreaH) / thumb.docH;
	//   if(thumb.scrollH < 13) thumb.scrollH = 13;
	
    document.getElementById('bb_thumb').style.height = Math.round(thumb.scrollH) + "px";
    
    //   Find the effective scroll distance once the thumb's height has been taken into account
	
    thumb.scrollDist = Math.round(thumb.scrollAreaH-thumb.scrollH);
    
    //   make the thumb div draggable
	
    Drag.init(document.getElementById('bb_thumb'),null,0,0,0,thumb.scrollDist);
    
    //   add onDrag function
	
    document.getElementById('bb_thumb').onDrag = function (x,y) {
      	var scrollY = parseInt(document.getElementById('bb_thumb').style.top);
      	var docY = 0 - (scrollY * (thumb.docH - thumb.contH) / thumb.scrollDist);
		if(thumb.contH <= thumb.docH) document.getElementById('bb_ad_list').style.top = docY + "px";
    }
  }
};

// INIT FUNCTIONS  ----------------------------------------------------------------------

window.onload = function(){ bb_init();};

function bb_init(){
	
	// Init Opacity of Button Objects
    var theObject;
	var opArray = new Array(document.getElementById('bb_settings').style,
							document.getElementById('bb_search').style,
							document.getElementById('bb_help').style,
							document.getElementById('bb_scrl_up').style,
							document.getElementById('bb_scrl_dn').style,
							document.getElementById('bb_list').style,
							document.getElementById('bb_back').style,
							document.getElementById('bb_next').style)
							;
    for(i=0; i < opArray.length; i++){
		theObject = opArray[i];
        theObject.opacity = 0;
	    theObject.filter = "alpha(opacity=0)";
	}
	thumb.init();	
}

// BUTTON FUNCTIONS  -------------------------------------------------------------------

function bb_show(id){
	var object = document.getElementById(id).style; 
	object.opacity = 1;
	object.filter = "alpha(opacity=100)";
}
function bb_hide(id){
	var object = document.getElementById(id).style; 
	object.opacity = 0;
	object.filter = "alpha(opacity=0)";
}

// AD LIST FUNCTIONS ------------------------------------------------------------------

function bb_load_ad_array(){

}
function bb_next_ad(){

}
function bb_back_ad(){
	
}
function bb_show_list(){
	
}
function bb_hide_list(){
	
}
function bb_scrl_up(){
	var speed = Math.round(millisec / 100);
	var timer = 0;
	setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
	timer++;
	
}
function bb_scrl_dn(){
	var speed = Math.round(millisec / 100);
	var timer = 0;
	setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
	timer++;
}

// IMAGE SWAP FUNCTIONS --------------------------------------------------------------------------------------

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}