diff --git a/app/assets/javascripts/cancer_predict.js b/app/assets/javascripts/cancer_predict.js
index 813f0f8..6e7224a 100644
--- a/app/assets/javascripts/cancer_predict.js
+++ b/app/assets/javascripts/cancer_predict.js
@@ -1,4 +1,30 @@
 $(document).ready(function(){
+	Array.prototype.remove_item_from_array = function(){
+		var result_array = this;
+		for(var i=0;i<arguments.length;i++){
+			if(Array.isArray(arguments[i])){
+				for(var j=0;j<arguments.length;j++){
+					var index = result_array.indexOf(arguments[i][j]);
+					if(index == -1)
+						continue;
+					else{
+						result_array = result_array.slice(0, index).concat(result_array.slice(index + 1, result_array.length));
+					}
+				}
+			}else{
+				var index = result_array.indexOf(arguments[i]);
+				if(index == -1)
+					continue;
+				else{
+					result_array = result_array.slice(0, index).concat(result_array.slice(index + 1, result_array.length));
+				};
+			};
+		};
+		console.log(this)
+		result_array.push = this.push;
+		result_array.remove_item_from_array = this.remove_item_from_array;
+		return result_array;
+	};
 	$('.cancer_help_btn').append('<i aria-hidden="true" class="fa fa-question"></i>');
 	$('.cancer_help_btn').off("click").on('click',function(){
 		var modal_head = "";
@@ -187,7 +213,6 @@ $(document).ready(function(){
 							$('tr.'+arguments[0]).css('display','table-row');
 							$('tr.tr_show').eq(-1).after($('tr.'+arguments[0]));
 							$('tr.'+arguments[0]).addClass('tr_show');
-							console.log(servive_ratio_arr);
 							if(this.length == 1){
 								$('.addition').css('display','block');
 								$('#result_text_content .extra-text').css('display','inline-block');
@@ -203,69 +228,57 @@ $(document).ready(function(){
 								add_choices_str += ('以及'+add_choices_transform[add_choices_transform.length-1])
 							else
 								add_choices_str = add_choices_transform[0];
-							console.log(add_choices_transform);
-							var new_text = '<p class="texts_show">'+'<a>100 位在術後有接受'+add_choices_str+'的婦女中，有 </a>'+'<a class="'+arguments[0]+' Overall_Survival">'+servive_ratio+'</a>'+'<a> 位婦女，術後 </a>'+'<a class="surgery_year">'+year+'</a>'+'<a>年仍為存活(多了</a>'+'<a class="'+arguments[0]+' Additional_Benefit">'+benefit+'</a><a>位)</a>'+'</p>';
+							var new_text = '<p class="texts_show">'+'<a>100 位在術後有接受</a><a class="'+arguments[0]+' choices">'+add_choices_str+'</a><a>的婦女中，有 </a>'+'<a class="'+arguments[0]+' Overall_Survival">'+servive_ratio+'</a>'+'<a> 位婦女，術後 </a>'+'<a class="surgery_year">'+year+'</a>'+'<a>年仍為存活(多了</a>'+'<a class="'+arguments[0]+' Additional_Benefit">'+benefit+'</a><a>位)</a>'+'</p>';
 							$('#result_text_content .extra-text .texts_show').eq(-1).after(new_text)
 							return Array.prototype.push.apply(this, arguments);
 						}else{
 							return Array.prototype.push.apply(this, arguments);
 						}
 					};
-					Array.prototype.remove_item_from_array = function(){
-						var result_array = this;
-						for(var i=0;i<arguments.length;i++){
-							if(Array.isArray(arguments[i])){
-								for(var j=0;j<arguments.length;j++){
-									var index = result_array.indexOf(arguments[i][j]);
-									if(index == -1)
-										continue;
-									else{
-										result_array = result_array.slice(0, index).concat(result_array.slice(index + 1, result_array.length));
+					active_treatment.remove_item_from_array = function(){
+						if(arguments.length == 1 && !Array.isArray(arguments[0])){
+							var index = this.indexOf(arguments[0])
+							var year = $('#current_year').attr('value');
+							if(index < this.length - 1){
+								for(var i = index + 1;i < this.length; i++){
+									lpv_real[i] -= lpv_dict[arguments[0]]
+									var servive_ratio = (Math.exp(lpv_calc[year])**lpv_real[i])*100;
+									var benefit = servive_ratio - servive_ratio_arr[servive_ratio_arr.length - 1];
+									$('tr.'+active_treatment[i]+' td.Overall_Survival').html(servive_ratio);
+									$('.'+active_treatment[i]+'.Overall_Survival').html(servive_ratio);
+									$('tr.'+active_treatment[i]+' td.Additional_Benefit').html(benefit);
+									$('.'+active_treatment[i]+'.Additional_Benefit').html(benefit);
+								};
+								var add_choices = [];
+								for(var i = 1;i < this.length; i++){
+									if(i != index){
+										add_choices.push(this[i]);
+										var add_choices_transform = [];
+										for(var j = 0;j<add_choices.length;j++){
+											add_choices_transform.push($('[for="'+add_choices[j]+'"]').html())
+										};
+										var add_choices_str = add_choices_transform.slice(0,add_choices_transform.length-1).join('、');
+										if(add_choices_transform.length >= 2)
+											add_choices_str += ('以及'+add_choices_transform[add_choices_transform.length-1])
+										else
+											add_choices_str = add_choices_transform[0];
+										$('.'+active_treatment[i]+'.choices').html(add_choices_str);
 									}
-								}
-							}else{
-								var index = result_array.indexOf(arguments[i]);
-								if(index == -1)
-									continue;
-								else{
-									result_array = result_array.slice(0, index).concat(result_array.slice(index + 1, result_array.length));
 								};
 							};
-						};
-						return result_array;
-					};
-					active_treatment.remove_item_from_array =  function(){
-						if(arguments.length == 1){
-							var year = $('#current_year').attr('value');
-							var lpv_current = lpv_real[lpv_real.length-1]+lpv_dict[arguments[0]];
-							lpv_real.push(lpv_current);
-							var servive_ratio = (Math.exp(lpv_calc[year])**lpv_current)*100;
-							var benefit = servive_ratio - servive_ratio_arr[servive_ratio_arr.length - 1];
-							servive_ratio_arr.push(servive_ratio);
-							$('tr.'+arguments[0]+' td.Overall_Survival').html(servive_ratio);
-							$('tr.'+arguments[0]+' td.Additional_Benefit').html(benefit);
-							$('tr.'+arguments[0]).css('display','table-row');
-							$('tr.tr_show').eq(-1).after($('tr.'+arguments[0]));
-							$('tr.'+arguments[0]).addClass('tr_show');
-							console.log(servive_ratio_arr);
-							if(this.length == 1){
-								$('.addition').css('display','block');
-								$('#result_text_content .extra-text').css('display','inline-block');
-							}
-							var add_choices = this.slice(1,this.length);
-							add_choices.push(arguments[0]);
-							var add_choices_transform = [];
-							for(var i = 0;i<add_choices.length;i++){
-								add_choices_transform.push($('[for="'+add_choices[i]+'"]').html())
+							$('tr.'+arguments[0]+' td.Overall_Survival').html('-');
+							$('tr.'+arguments[0]+' td.Additional_Benefit').html('-');
+							$('tr.'+arguments[0]).css('display','none');
+							$('tr.'+arguments[0]).removeClass('tr_show');
+							$('a.'+arguments[0]).eq(0).parent().remove();
+							lpv_real = lpv_real.remove_item_from_array(lpv_real[index]);
+							console.log(lpv_real);
+							servive_ratio_arr = servive_ratio_arr.remove_item_from_array(servive_ratio_arr[index]);
+							if(this.length == 2){
+								$('.addition').css('display','none');
+								$('#result_text_content .extra-text').css('display','none');
 							};
-							var add_choices_str = add_choices_transform.slice(0,add_choices_transform.length-1).join('、');
-							if(add_choices_transform.length >= 2)
-								add_choices_str += ('以及'+add_choices_transform[add_choices_transform.length-1])
-							else
-								add_choices_str = add_choices_transform[0];
-							console.log(add_choices_transform);
-							var new_text = '<p class="texts_show">'+'<a>100 位在術後有接受'+add_choices_str+'的婦女中，有 </a>'+'<a class="'+arguments[0]+' Overall_Survival">'+servive_ratio+'</a>'+'<a> 位婦女，術後 </a>'+'<a class="surgery_year">'+year+'</a>'+'<a>年仍為存活(多了</a>'+'<a class="'+arguments[0]+' Additional_Benefit">'+benefit+'</a><a>位)</a>'+'</p>';
-							$('#result_text_content .extra-text .texts_show').eq(-1).after(new_text)
+							console.log(arguments[0]);
 							return Array.prototype.remove_item_from_array.apply(this, arguments);
 						}else{
 							return Array.prototype.remove_item_from_array.apply(this, arguments);
@@ -277,16 +290,15 @@ $(document).ready(function(){
 							if(!active_treatment.includes($(this).parent().attr('id'))){
 								active_treatment.push($(this).parent().attr('id'))
 								console.log($(this).parent().attr('id'))
-							}
-						})
+							};
+						});
 						$('#'+treatmeny_method[i]+' .cancer_table_btn').eq(0).click(function(){
-							if(!active_treatment.includes($(this).parent().attr('id'))){
-								//a.indexOf(3)
-								active_treatment.push($(this).parent().attr('id'))
-								console.log($(this).parent().attr('id'))
-							}
-						})
-					}
+							if(active_treatment.includes($(this).parent().attr('id'))){
+								active_treatment = active_treatment.remove_item_from_array($(this).parent().attr('id'));
+								console.log(active_treatment);
+							};
+						});
+					};
 					$('#current_year').change(function(){
 						$('.surgery_year').html($(this).attr('value'));
 						$('.cancer_years').removeClass('active');
@@ -304,9 +316,6 @@ $(document).ready(function(){
 							$('.'+active_treatment[i]+'.Additional_Benefit').html(benefit);
 						}
 						$('.'+active_treatment[0]+'.Overall_Survival').html(servive_ratio_arr[0]);
-						/*for(var i = 0;i<treatmeny_method.length;i++){
-							$('.'+treatmeny_method[i]+'["name='+yes+'"]').attr('value') == 1
-						}*/
 						$('.survive_person').html(servive_ratio);
 					});
 				});