#extra_controls, #scrollbar { 
    display:block; /* initially display:none; to hide from incapable */
    }

div#wn	{
	position:relative;
	width:290px;
	height:430px;  /*höhe des ganzen contents, welcher zum scrollen ist*/
	overflow:hidden;
	}
div.content { /* hide content to be swapped in */
	position:absolute;
	left:0px;
	top:0px;
	width: 290px;
	color: #001A00;
	text-align: left;
	}
div#lyr1 { /* show first div */
    visibility:visible;
    }
div#scrollbar {
	position:relative;
	width:11px;
	height:430px;  /*zwischen up and down button abstand*/
	font-size:1px;  /* so no gap or misplacement due to image vertical alignment */

  }
/*hintergrund zwischen up and down button*/
div#track {
	position:absolute;
	left:0;
	top:16px; /*höhe, wo track hintergrund anfängt*/
	width:17px;
	height:400px;
	background-color: #336;
	background-image: url(../img/scrollbar_track.gif);  

  }
div#dragBar {
	position:absolute;
	top:-4px;
	width:15px;
	height:400px; /*breite des buttons, welcher zum scrollen ist. */
	background-color:#660000;
	left: 1px;


  }  
div#up { position:absolute; left:0; top:0; }  
div#down { position:absolute; left:0; bottom:0; }

/* so no gap or misplacement due to image vertical alignment
font-size:1px in scrollbar has same effect (less likely to be removed, resulting in support issues) */
div#scrollbar img {
    display:block; 
    } 
    
/* for safari, to prevent selection problem */
div#scrollbar, div#track, div#dragBar, div#up, div#down {
    -moz-user-select: none;
    -khtml-user-select: none;
}