function do_scrollbar() {
	// Muss nach dem Resizen ausgeführt werden!
	var elem_scroll_height = $('#inner-content').attr('scrollHeight');
	var elem_height = $('#inner-content').height();
	var elem_max_scroll = 0;
	if(elem_scroll_height > 0) {
		elem_max_scroll = elem_scroll_height - elem_height;
	} 
	
	
	if(elem_max_scroll > 0) {
		$('.jScrollbar_draggable').css('display', 'block');
		$('#doc').css('overflow', 'hidden');
		$('#doc').width(570);
		$(".jScrollbar").jScrollbar({
	      allowMouseWheel : true,
	      scrollStep : 20
	    });
	} else {
		$('.jScrollbar_draggable').css('display', 'none');
		$('#doc').width(610);
	}
}



var height_difference = 200;
$(document).ready(function() {
	
	$('#inner-content').height($(window).height() - height_difference);
	$('.jScrollbar_draggable').height($(window).height() - height_difference - 2);
	$(window).resize(function() {
		$('#inner-content').height($(window).height() - height_difference);
		$('.jScrollbar_draggable').height($(window).height() - height_difference - 2);
		do_scrollbar();
	});
	
	do_scrollbar();
});


// alert($('#inner-content').attr('scrollHeight') + ' - ' + $('#inner-content').height());