function init() {
	
	if (!(BrowserDetect.browser == 'Explorer'
			&& BrowserDetect.version < 7)) {
		
		var scroller  = null;
		var scrollbar = null;
		
		scroller  = new jsScroller(document.getElementById('mainText'), 470, 315);
		scrollbar = new jsScrollbar(document.getElementById('mainTextScrollbar'), scroller, false);
		
	}
	
	// nastaveni oznaceni aktivni polozky hlavniho menu
	highlightActiveMenu();
	
}

function highlightActiveMenu() {
	
	if ($('subMenuDividerBar')) {
		
		var activeMenu = $$('#menu a.active');
		
		if (activeMenu
				&& activeMenu [0]) {
			
			activeMenu = activeMenu [0];
			width = $(activeMenu).getWidth() + 'px';
			var positions = $(activeMenu).positionedOffset();
			left = positions [0] + 'px';
			
			$('subMenuDividerBar').setStyle({
				width: width,
				left: left
			});
		
		}
		
	}
	
}