function initScrollLayer() {

	var holderHeight = document.getElementById("wn").offsetHeight;
	var contentHeight = document.getElementById("lyr1").offsetHeight;
	

	if (contentHeight > holderHeight) {
		document.getElementById('dragBar').style.display = 'block';
		 // arguments: id of layer containing scrolling layers (clipped layer), id of layer to scroll, 
	  // if horizontal scrolling, id of element containing scrolling content (table?)
	  var wndo = new dw_scrollObj('wn', 'lyr1');
	  
	  // bSizeDragBar set true by default (explained at www.dyn-web.com/dhtml/scroll/ )
	  wndo.bSizeDragBar = false;
	  
	  // arguments: dragBar id, track id, axis ("v" or "h"), x offset, y offset
	  // (x/y offsets of dragBar in track)
	  wndo.setUpScrollbar("dragBar", "track", "v", 1, 1);
	  
	  // pass id('s) of scroll area(s) if inside table(s)
	  // i.e., if you have 3 (with id's wn1, wn2, wn3): dw_scrollObj.GeckoTableBugFix('wn1', 'wn2', 'wn3');
	  dw_scrollObj.GeckoTableBugFix('wn'); 
		
	}
	else {

		document.getElementById('dragBar').style.display = 'none';
	}
	
}