$(document).ready(function() {
           $(function(){
		                        var allRadios = $('input[type=radio]')
		                        var radioChecked;

		                        var setCurrent =
		                                        function(e) {
		                                            var obj = e.target;

		                                            radioChecked = $(obj).attr('checked');
		                                     }

		                        var setCheck =
		                                    function(e) {

		                                        if (e.type == 'keypress' && e.charCode != 32) {
		                                            return false;
		                                        }

		                                        var obj = e.target;

		                             if (radioChecked) {
		                             $(obj).attr('checked', false);
		                             } else {
		                             $(obj).attr('checked', true);
		                             }
		                                 }    

		                        $.each(allRadios, function(i, val){        
		                             var label = $('label[for=' + $(this).attr("id") + ']');

		                         $(this).bind('mousedown keydown', function(e){
		                                setCurrent(e);
		                            });

		                            label.bind('mousedown keydown', function(e){
		                                e.target = $('#' + $(this).attr("for"));
		                                setCurrent(e);
		                            });

		                         $(this).bind('click', function(e){
		                                setCheck(e);    
		                            });

		                        });
		            });
        });