$(document).ready(function(){
	roll_items();	
});

function roll_items() {	
	$('#menu .knop').hover(function(){
		$(this).children(".submenu").show();
		plaatje = $(this).children("a").attr('class');
		if(sActive != plaatje) {			
			$(this).children("a").children("img").attr('src','images/template/btn_'+plaatje+'_roll.jpg');			
		}
	},function(){
		plaatje = $(this).children("a").attr('class');
		$(this).children(".submenu").hide();
		if(sActive != plaatje) {
			$(this).children("a").children("img").attr('src','images/template/btn_'+plaatje+'.jpg');			   
		}
	});
}