Answer again already answered quizzes in is.muni.cz

muni_quiz_check

javascript: (function(){
	document._ans=new Array();
	
	$('table[bgcolor="#CCCC66"] *').hide();
	$('table[bgcolor="#CCCC66"]').css({
		'border-bottom':'3px ridge','margin':'2px'
	});
	$("form>p").hide();
	$("table[cellspacing='0'] tr").each(
		function(i,b){
			$(b).children('td:first-child').css('background','transparent').each(function(i,a){
				a.score=0
			});
			
			$(b).find('img[alt="spr%C3%A1vn%C4%9B"]').hide().each(function(i,a){
				document._ans[document._ans.length]=a.parentNode.firstChild.getAttribute('id')
			});

			$(b).find('img[alt="%C5%A1patn%C4%9B"], img[alt="spr%C3%A1vn%C4%9B"]').hide();
			$(b).find(':checked').attr('checked',false)
	});

	$("form").append("<button id='chkagain'>Opravit</button>");
	$("#chkagain").click(function(e){
		$('input[type="radio"]').parent().css({
			'outline':'none','background':'transparent'
		});
	
		e.preventDefault();
		$("input:checked").parent().css({
			'outline':'1px solid red','background':'#FFDFC8'
		});
		document._ans.forEach(function(v){
			var i=$("#"+v);
			if(i.attr('checked')) {
				i.parent().css({'outline':'1px solid green','background':'#DFFFC8'});
			} else {
				i.parent().css({'outline':'1px solid orange','background':'#FFF4C8'});
			}
			return false
		})
	});
})();