diff --git a/components/search.riot b/components/search.riot
index 43399f4..769432d 100644
--- a/components/search.riot
+++ b/components/search.riot
@@ -1,10 +1,11 @@
 <search>
     <label>
-	    <input onkeydown={searchF} type="input" placeholder= {state.formation}>
+	    <input onkeydown={searchF} type="input" placeholder= {state.placeholder}>
+        <button onclick={back}><</button>
 		<div id="list-formations">
             <ul>
 	            <li each={item in this.state.items}>
-		           <a href={item.path} target="_blank">{item.name}</a>
+		           <span onclick={()=>filter(item.name)}>{item.name}</span>
                    <span>{item.count}</span>
 	            </li>
             </ul>
@@ -12,11 +13,18 @@
     </label>
     <script>
 
-        async function formation(){
-            let result = await fetch("https://data.enseignementsup-recherche.gouv.fr/api/records/1.0/search/?dataset=fr-esr-parcoursup&q=&sort=tri&facet=fili&timezone=Europe%2FBerlin")
-            let resultats = await result.json()
-            let table = resultats["facet_groups"][0]["facets"]
-            return table
+        const searchURL = `https://data.enseignementsup-recherche.gouv.fr/api/records/1.0/search/?dataset=fr-esr-parcoursup&timezone=Europe%2FBerlin`
+
+        async function fetchFiliere(state) {
+            if (state.sousfili){
+                var request = await fetch(`${searchURL}&rows=0&sort=tri&facet=fil_lib_voe_acc&refine.form_lib_voe_acc=${state.sousfili}`)
+            } else if (state.fili&&!state.sousfili){
+                var request = await fetch(`${searchURL}&rows=0&sort=tri&facet=form_lib_voe_acc&refine.fili=${state.fili}`)
+            } else if (!state.fili&&!state.sousfili){
+                var request = await fetch(`${searchURL}&rows=0&sort=tri&facet=fili`)
+            }
+            let result  = await request.json()
+            return result["facet_groups"][0]["facets"]
         }
 
         export default function search(){
@@ -24,11 +32,13 @@
                 onBeforeMount(props, state) {
                 // initial state
                     this.state = {
-                        formation: props.formation,
+                        placeholder: "Formation",
                         items: null,
-                        allitems: null
+                        allitems: null,
+                        fili: null,
+                        sousfili: null
                     }
-                    formation().then((response) => {
+                    fetchFiliere(this.state).then((response) => {
 			            this.update({
                             items: response,
                             allitems: response
@@ -38,14 +48,54 @@
                 searchF(e){
                     let responseFiltered=[]
 			        this.state.allitems.forEach(formation => {
-                        if (formation.name.includes(e.target.value)) {
+                        if (formation.name.toUpperCase().includes(e.target.value.toUpperCase())) {
                             responseFiltered.push(formation)
                         }
                     });
                     this.update({
                         items: responseFiltered
 				    })
-                    console.log(this.state.items)
+                },
+                filter(fili){
+                    console.log("filter! "+fili)
+                    if (this.state.placeholder==="Filière de formation"){
+                        this.update({
+                            placeholder: "Filière de formation détaillée",
+                            sousfili: fili,
+                        })
+                    } else if (this.state.placeholder="Formation"){
+                        this.update({
+                            placeholder: "Filière de formation",
+                            fili: fili
+                        })
+                    }
+                    fetchFiliere(this.state).then((response) => {
+                        this.update({
+                            allitems: response,
+                            items: response
+                        })
+                        console.log(this.state.items)
+                    })
+                },
+                back(){
+                    console.log("back")
+                    if (this.state.placeholder==="Filière de formation"){
+                        this.update({
+                            placeholder: "Formation",
+                            fili: null,
+                        })
+                    } else if (this.state.placeholder="Filière de formation détaillée"){
+                        this.update({
+                            placeholder: "Filière de formation",
+                            sousfili: null
+                        })
+                    }
+                    fetchFiliere(this.state).then((response) => {
+                        this.update({
+                            allitems: response,
+                            items: response
+                        })
+                    })
                 }
             }
         }
diff --git a/index.html b/index.html
index 2a5fd71..68710ee 100644
--- a/index.html
+++ b/index.html
@@ -16,8 +16,6 @@
 		<!--<script>
 			riot.compile().then(() => {
 				riot.mount('search', {
-					formation:'Formation',
-					items: null
 				})
 			})
 		</script>-->
diff --git a/javascript/components/search.js b/javascript/components/search.js
new file mode 100644
index 0000000..8ca828e
--- /dev/null
+++ b/javascript/components/search.js
@@ -0,0 +1,158 @@
+const searchURL = `https://data.enseignementsup-recherche.gouv.fr/api/records/1.0/search/?dataset=fr-esr-parcoursup&timezone=Europe%2FBerlin`;
+async function fetchFiliere(state) {
+  if (state.sousfili) {
+    await fetch(`${searchURL}&rows=0&sort=tri&facet=fil_lib_voe_acc&refine.form_lib_voe_acc=${sousfiliere}`);
+  } else if (state.fili & !state.sousfili) {
+    await fetch(`${searchURL}&rows=0&sort=tri&facet=form_lib_voe_acc&refine.fili=${filiere}`);
+  } else if (!state.fili & !state.sousfili) {
+    await fetch(`${searchURL}&rows=0&sort=tri&facet=fili`);
+  } else {
+    console.log("ta verif elle pue");
+  }
+  let result = await request.json();
+  return result["facet_groups"][0]["facets"];
+}
+var search = {
+  css: null,
+  exports: function search() {
+    return {
+      onBeforeMount(props, state) {
+        // initial state
+        this.state = {
+          placeholder: "Formation",
+          items: null,
+          allitems: null,
+          fili: null,
+          sousfili: null
+        };
+        fetchFiliere(this.state).then(response => {
+          this.update({
+            items: response,
+            allitems: response
+          });
+        });
+      },
+      searchF(e) {
+        let responseFiltered = [];
+        this.state.allitems.forEach(formation => {
+          if (formation.name.toUpperCase().includes(e.target.value.toUpperCase())) {
+            responseFiltered.push(formation);
+          }
+        });
+        this.update({
+          items: responseFiltered
+        });
+      },
+      filter(fili) {
+        console.log("filter! " + fili);
+        if (this.state.placeholder === "Filière de formation") {
+          this.update({
+            placeholder: "Filière de formation détaillée",
+            sousfili: fili
+          });
+          fetchFiliere(this.state).then(response => {
+            this.update({
+              allitems: response,
+              items: response
+            });
+          });
+          console.log(this.state.items);
+        } else if (this.state.placeholder = "Formation") {
+          this.update({
+            placeholder: "Filière de formation",
+            fili: fili
+          });
+          fetchFiliere(this.state).then(response => {
+            this.update({
+              allitems: response,
+              items: response
+            });
+            console.log(this.state.items);
+          });
+        }
+      },
+      back() {
+        console.log("back");
+        if (this.state.placeholder === "Filière de formation") {
+          this.update({
+            placeholder: "Formation",
+            fili: null
+          });
+          fetchFiliere(state).then(response => {
+            this.update({
+              allitems: response,
+              items: response
+            });
+          });
+          console.log(this.state.items);
+        } else if (this.state.placeholder = "Filière de formation détaillée") {
+          this.update({
+            placeholder: "Filière de formation",
+            sousfili: null
+          });
+          fetchFiliere(this.state).then(response => {
+            this.update({
+              allitems: response,
+              items: response
+            });
+            console.log(this.state.items);
+          });
+        }
+      }
+    };
+  },
+  template: (template, expressionTypes, bindingTypes, getComponent) => template('<label><input expr0="expr0" type="input"/><button expr1="expr1"><</button><div id="list-formations"><ul><li expr2="expr2"></li></ul></div></label>', [{
+    redundantAttribute: 'expr0',
+    selector: '[expr0]',
+    expressions: [{
+      type: expressionTypes.EVENT,
+      name: 'onkeydown',
+      evaluate: _scope => _scope.searchF
+    }, {
+      type: expressionTypes.ATTRIBUTE,
+      name: 'placeholder',
+      evaluate: _scope => _scope.state.placeholder
+    }]
+  }, {
+    redundantAttribute: 'expr1',
+    selector: '[expr1]',
+    expressions: [{
+      type: expressionTypes.EVENT,
+      name: 'onclick',
+      evaluate: _scope => _scope.back
+    }]
+  }, {
+    type: bindingTypes.EACH,
+    getKey: null,
+    condition: null,
+    template: template('<span expr3="expr3"> </span><span expr4="expr4"> </span>', [{
+      redundantAttribute: 'expr3',
+      selector: '[expr3]',
+      expressions: [{
+        type: expressionTypes.TEXT,
+        childNodeIndex: 0,
+        evaluate: _scope => _scope.item.name
+      }, {
+        type: expressionTypes.EVENT,
+        name: 'onclick',
+        evaluate: _scope => () => _scope.filter(_scope.item.name)
+      }]
+    }, {
+      redundantAttribute: 'expr4',
+      selector: '[expr4]',
+      expressions: [{
+        type: expressionTypes.TEXT,
+        childNodeIndex: 0,
+        evaluate: _scope => _scope.item.count
+      }]
+    }]),
+    redundantAttribute: 'expr2',
+    selector: '[expr2]',
+    itemName: 'item',
+    indexName: null,
+    evaluate: _scope => _scope.state.items
+  }]),
+  name: 'search'
+};
+
+export { search as default };
diff --git a/javascript/parcoursup-link.js b/javascript/parcoursup-link.js
index 1dd04b4..525ab0e 100644
--- a/javascript/parcoursup-link.js
+++ b/javascript/parcoursup-link.js
@@ -17,7 +17,7 @@ class PAPI {
     }
 
     static async fetchFiliere(filiere) {
-        let request = await fetch(`${PAPI.searchURL}&rows=0&sort=tri&facet=lib_for_voe_ins&refine.fili=${filiere}`)
+        let request = await fetch(`${PAPI.searchURL}&rows=0&sort=tri&facet=form_lib_voe_acc&refine.fili=${filiere}`)
         let result  = await request.json()
 
         return result["facet_groups"][0]["facets"]
diff --git a/javascript/search.js b/javascript/search.js
index ad7b098..583464a 100644
--- a/javascript/search.js
+++ b/javascript/search.js
@@ -1,89 +1,19 @@
-let model = {
-  getFormations(search) {
-    return new Promise((resolve, reject) => {
-      let xhr = new XMLHttpRequest();
-      xhr.open("GET", "/api/records/1.0/search/?dataset=fr-esr-parcoursup&q=&sort=tri&facet=fili&timezone=Europe%2FBerlin");
-      xhr.responseType = "json";
-      xhr.onload = ev => {
-        if (xhr.status == 200) resolve(xhr.response);
-      };
-      xhr.onerror = () => {
-        reject("error");
-      };
-      xhr.send();
-    });
-  }
-};
-
-class Controller {
-  constructor(view, model) {
-    this.view = view;
-    this.model = model;
-    this.loading = false;
-    this.lastSearch = null;
-    this.error = null;
-    this.results = [];
-    this.view.setLoading(false);
-    this.view.bindSearch(this.search.bind(this));
-  }
-  reset() {
-    this.loading = false;
-    this.error = null;
-    this.results = [];
-  }
-  async search(formation) {
-    this.model.getFormations(formation).then(response => {
-      let table = response["facet groups"][0]["facets"];
-      this.view.renderList(table);
-    }).catch(error => {
-      this.view.renderMessage(error);
-    });
-  }
+const searchURL = `https://data.enseignementsup-recherche.gouv.fr/api/records/1.0/search/?dataset=fr-esr-parcoursup&timezone=Europe%2FBerlin`;
+async function fetchFiliere0() {
+  let request = await fetch(`${searchURL}&rows=0&sort=tri&facet=fili`);
+  let result = await request.json();
+  return result["facet_groups"][0]["facets"];
 }
-
-function debounce(fn, wait) {
-  let timeout;
-  return (...args) => {
-    clearTimeout(timeout);
-    timeout = setTimeout(() => fn(...args), wait);
-  };
+async function fetchFiliere1(filiere) {
+  let request = await fetch(`${searchURL}&rows=0&sort=tri&facet=form_lib_voe_acc&refine.fili=${filiere}`);
+  let result = await request.json();
+  return result["facet_groups"][0]["facets"];
 }
-class View {
-  constructor() {
-    this.listFormations = document.querySelector("#list-formations");
-    this.inputSearch = document.querySelector("input");
-    this.message = document.querySelector("p.error");
-  }
-  _getInput() {
-    return this.inputSearch.value;
-  }
-  renderMessage(error) {
-    this.message.style.display = "block";
-    this.message.textContent = error;
-  }
-  renderList(formations) {
-    let ul = document.createElement("ul");
-    formations.forEach(formation => {
-      let li = document.createElement("li");
-      let a = document.createElement("a");
-      let span = document.createElement("span");
-      //a.href = `test`
-      a.target = "_blank";
-      a.textContent = formation.name;
-      span.textContent = formation.name;
-      li.appendChild(a);
-      li.appendChild(span);
-      ul.appendChild(li);
-    });
-    this.listFormations.replaceChildren(ul);
-  }
-  bindSearch(handler) {
-    this.inputSearch.addEventListener("input", debounce(e => {
-      handler(this._getInput());
-    }, 500));
-  }
+async function fetchFiliere2(sousfiliere) {
+  let request = await fetch(`${searchURL}&rows=0&sort=tri&facet=fil_lib_voe_acc&refine.form_lib_voe_acc=${sousfiliere}`);
+  let result = await request.json();
+  return result["facet_groups"][0]["facets"];
 }
-
 var search = {
   css: null,
   exports: function search() {
@@ -91,28 +21,101 @@ var search = {
       onBeforeMount(props, state) {
         // initial state
         this.state = {
-          formation: props.formation
+          placeholder: "Formation",
+          items: null,
+          allitems: null,
+          fili: null
         };
+        fetchFiliere0().then(response => {
+          this.update({
+            items: response,
+            allitems: response
+          });
+        });
       },
-      search() {
-        console.log("test1");
-        const view = new View();
-        new Controller(view, model);
+      searchF(e) {
+        let responseFiltered = [];
+        this.state.allitems.forEach(formation => {
+          if (formation.name.toUpperCase().includes(e.target.value.toUpperCase())) {
+            responseFiltered.push(formation);
+          }
+        });
+        this.update({
+          items: responseFiltered
+        });
+      },
+      filter(fili) {
+        console.log("filter! " + fili);
+        if (this.state.placeholder === "Filière de formation") {
+          this.update({
+            placeholder: "Filière de formation détaillée",
+            fili: fili
+          });
+          fetchFiliere2(this.state.fili).then(response => {
+            this.update({
+              allitems: response,
+              items: response
+            });
+          });
+          console.log(this.state.items);
+        } else if (this.state.placeholder = "Formation") {
+          this.update({
+            placeholder: "Filière de formation",
+            fili: fili
+          });
+          fetchFiliere1(this.state.fili).then(response => {
+            this.update({
+              allitems: response,
+              items: response
+            });
+            console.log(this.state.items);
+          });
+        }
       }
     };
   },
-  template: (template, expressionTypes, bindingTypes, getComponent) => template('<label><input expr1="expr1" type="input"/><p class="error"></p><div id="list-formations"></div></label>', [{
-    redundantAttribute: 'expr1',
-    selector: '[expr1]',
+  template: (template, expressionTypes, bindingTypes, getComponent) => template('<label><input expr36="expr36" type="input"/><div id="list-formations"><ul><li expr37="expr37"></li></ul></div></label>', [{
+    redundantAttribute: 'expr36',
+    selector: '[expr36]',
     expressions: [{
       type: expressionTypes.EVENT,
-      name: 'oninput',
-      evaluate: _scope => _scope.search
+      name: 'onkeydown',
+      evaluate: _scope => _scope.searchF
     }, {
       type: expressionTypes.ATTRIBUTE,
       name: 'placeholder',
-      evaluate: _scope => _scope.state.formation
+      evaluate: _scope => _scope.state.placeholder
     }]
+  }, {
+    type: bindingTypes.EACH,
+    getKey: null,
+    condition: null,
+    template: template('<span expr38="expr38"> </span><span expr39="expr39"> </span>', [{
+      redundantAttribute: 'expr38',
+      selector: '[expr38]',
+      expressions: [{
+        type: expressionTypes.TEXT,
+        childNodeIndex: 0,
+        evaluate: _scope => _scope.item.name
+      }, {
+        type: expressionTypes.EVENT,
+        name: 'onclick',
+        evaluate: _scope => () => _scope.filter(_scope.item.name)
+      }]
+    }, {
+      redundantAttribute: 'expr39',
+      selector: '[expr39]',
+      expressions: [{
+        type: expressionTypes.TEXT,
+        childNodeIndex: 0,
+        evaluate: _scope => _scope.item.count
+      }]
+    }]),
+    redundantAttribute: 'expr37',
+    selector: '[expr37]',
+    itemName: 'item',
+    indexName: null,
+    evaluate: _scope => _scope.state.items
   }]),
   name: 'search'
 };