
/*
    dw_scroll_dx.js version date: March 2005
    contains all scrolling layers files in one
*/

/*************************************************************************
  This code is from Dynamic Web Coding at www.dyn-web.com
  Copyright 2001-4 by Sharon Paine
  See Terms of Use at 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!
*************************************************************************/

/* dw_scrollObj.js  version date: March 2005 */

dw_scrollObjs = {};
dw_scrollObj.speed = 100; // scrolling speed
dw_scrollObj.slideDur = 500; // duration of glide
dw_scrollObj.prototype.bSizeDragBar = true; // size dragBar according to layer size?
dw_scrollObj.prototype.bHideDragBar = true; // hide dragbar when it's not needed

function initScrollLayer()
{
	document.write ('<style>#scroll_layer {position: absolute;}</style>');

	var args = initScrollLayer.arguments;
	for (i = 0; i < args.length; i++)
	{
		// set the width and height and make it so we can have scripts disabled
		scWindow = document.getElementById(args[i][0]);
		scWindow.style.position = 'relative';
		scWindow.style.height = args[i][2] + 'px';

		scArea = document.getElementById(args[i][0] + '_area');
		scArea.style.position = 'absolute';
		scArea.style.overflow = 'hidden';
		scArea.style.clip = 'rect(0px, 100%, ' + args[i][2] + 'px, 0px)';
		scArea.style.height = args[i][2] + 'px';
		scArea.style.width = args[i][1] - args[i][3] + 'px';

		scBar = document.getElementById(args[i][0] + '_bar');
		scBar.style.display = 'block';
		scBar.style.width = args[i][3] + 'px';
		scBar.style.height = args[i][2] + 'px';
		scBar.style.left = args[i][1] - args[i][3] + 'px';

		document.getElementById(args[i][0] + '_track').style.top = args[i][4] + 'px';
		document.getElementById(args[i][0] + '_track').style.height = args[i][2] - (args[i][4] * 2) + 'px';

		var scObject = new dw_scrollObj(args[i][0] + '_area', args[i][0] + '_layer');
		scObject.setUpScrollbar(args[i][0] + '_drag_bar', args[i][0] + '_track', 'v', 0, 0);
		dw_scrollObj.GeckoTableBugFix(args[i][0] + '_area');
	}
}


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;
};

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

dw_scrollObj.prototype.shiftTo = function(lyr, x, y)
{
	if (!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_hoverscroll.js  version date: June 2004 */

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()
{};

/* dw_glidescroll.js  version date: June 2004 */

// intermediary functions needed to prevent errors before page loaded
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);
};

// Resources for time-based slide algorithm:
//  DHTML chaser tutorial at DHTML Lab - www.webreference.com/dhtml
//  and cbe_slide.js from	www.cross-browser.com by Mike Foster
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
	{	// if time's up
		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()
{};

/*   dw_slidebar.js   version date: Feb 2004   requires dw_event.js   */

// 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;
  }
};

/*  dw_scroll_aux.js    version date: May 2004  */

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);
	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 (bar.maxY) document.getElementById('scroll_bar').style.visibility = 'visible';
	}

	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;
		//!!
		//if (dw_scrollObj.prototype.bHideDragBarWhenNotNeeded && bar.maxY) alert('');
	}
};

// 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;
};

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;
	}
};
