$(document).ready(function() {
		$("#register_for").change(function()
							{	$("input[@name=fee]").val('0 euros');	
								if($("#register_for").val() == "full"){$("#only_afternoons input[@checked]").removeAttr("checked");$("#only_afternoons").hide('fast');$("#full_conference").show('slow');}
								else if($("#register_for").val() == "afternoon"){$("input[@type=radio][@checked]").removeAttr("checked");$("#full_conference").hide('fast');$("#only_afternoons").show('slow');}
								else {$("input[@checked]").removeAttr("checked");$("#full_conference").hide('fast');$("#only_afternoons").slideUp('slow');}
								
							}	
							);
							
							if($("#register_for").val() == "full"){$("#full_conference").show('slow');calculate();}
								else if($("#register_for").val() == "afternoon"){$("#only_afternoons").show('slow');calculate();}
							
								
							$("input[@type=radio]").click(function(){calculate()});
							$("input[@type=checkbox]").click(function(){calculate()});
							
							calculate();

});