$(document).ready(function(){       
    $(".levering").change(function () {
		//alert($('[name=levering]').val());
    	if ($('[name=levering]').val() >= "2" ) {    
        	$(".parent2").slideDown("fast"); //Slide Down Effect   
        } else {
            $(".parent2").slideUp("fast");	//Slide Up Effect
        }
     });
});

$(document).ready(function(){       
    $(".onderhoud").change(function () {
    	if ($('[name=onderhoud]').checked = true ) {    
        	$(".parent1").slideDown("fast"); //Slide Down Effect   
        } 
		
		else {
            $(".parent1").slideUp("fast");	//Slide Up Effect
        }
     });
});