var scrollBar;		    
var scrollContent;

function handleScroll(delta) {
  dw_scrollObj.scrollBy('wn1', 0, delta * 200, 200);         
}

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)
		handleScroll(delta);
		if (event.preventDefault)
				event.preventDefault();
		event.returnValue = false;
}

/*************************************************************************
  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!
*************************************************************************/

function initScrollLayer() {    
	if (document.getElementById) {
	  scrollBar = document.getElementById('Scrollbar');
	  scrollContent = document.getElementById('lyr1');
	}
	else {
	  scrollBar = document.all['Scrollbar'];
	  scrollContent = document.all['lyr1'];
	}
	
	if (scrollContent && scrollContent.offsetHeight <= 301) {
	  Scrollbar.style.display = 'none';
	}
	else {
	  scrollBar.style.display = 'block';
	  if (window.addEventListener)
		window.addEventListener('DOMMouseScroll', wheel, false);
	  window.onmousewheel = document.onmousewheel = wheel;

	  var wndo1 = new dw_scrollObj('wn1', 'lyr1', null);
	  wndo1.setUpScrollbar("dragBar", "track", "v", 1, 1);
	  dw_showLayers("Scrollbar");
	}
}

function dw_showLayers() {
  if ( document.getElementById ) {
	var lyr, i;
	for (i=0; arguments[i]; i++) {
	  lyr = document.getElementById( arguments[i] );
	  lyr.style.visibility = "visible";
	}
  }
}