diff --git a/components/search.riot b/components/search.riot
index 5776dab..48e9c91 100644
--- a/components/search.riot
+++ b/components/search.riot
@@ -1,6 +1,7 @@
 <search>
     <label>
 	    <input onkeydown={searchF} type="input" placeholder= {state.placeholder}>
+        <button onclick={back}><</button>
 		<div id="list-formations">
             <ul>
 	            <li each={item in this.state.items}>
@@ -12,11 +13,27 @@
     </label>
     <script>
 
-        async function apiLink(whatToSearch, whereToSearch){
-            let result = await fetch("https://data.enseignementsup-recherche.gouv.fr/api/records/1.0/search/?dataset=fr-esr-parcoursup&q=&sort=tri&facet="+whatToSearch+"&timezone=Europe%2FBerlin")
-            let resultats = await result.json()
-            let table = resultats["facet_groups"][whereToSearch]["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 fetchFiliere0() {
+            let request = await fetch(`${searchURL}&rows=0&sort=tri&facet=fili`)
+            let result  = await request.json()
+
+            return result["facet_groups"][0]["facets"]
+        }
+
+        async function fetchFiliere1(filiere) {
+            let request = await fetch(`${searchURL}&rows=0&sort=tri&facet=form_lib_voe_acc&refine.fili=${filiere}`)
+            let result  = await request.json()
+
+            return result["facet_groups"][0]["facets"]
+        }
+
+        async function fetchFiliere2(sousfiliere) {
+            let request = await fetch(`${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"]
         }
 
         export default function search(){
@@ -27,11 +44,10 @@
                         placeholder: "Formation",
                         items: null,
                         allitems: null,
-                        whatToSearch: "fili",
                         fili: null,
                         sousfili: null
                     }
-                    apiLink(this.state.whatToSearch,0).then((response) => {
+                    fetchFiliere0().then((response) => {
 			            this.update({
                             items: response,
                             allitems: response
@@ -51,27 +67,59 @@
                 },
                 filter(fili){
                     console.log("filter! "+fili)
-                    let step=0;
                     if (this.state.placeholder==="Filière de formation"){
                         this.update({
                             placeholder: "Filière de formation détaillée",
                             sousfili: fili,
-                            whatToSearch: "fili&facet=form_lib_voe_acc&facet=fil_lib_voe_acc&refine.form_lib_voe_acc="+this.state.sousfili+"&refine.fili="this.state.fili
                         })
-                    } else {
-                        this.update({
-                            placeholder: "Filière de formation",
-                            fili: fili,
-                            whatToSearch: "fili&facet=form_lib_voe_acc&refine.fili="+this.state.fili
-                        })
-                    }
-                    apiLink(this.state.whatToSearch).then((response) => {
-                        this.update({
-                            allitems: response,
-                            item: response
+                        fetchFiliere2(this.state.sousfili).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)
+                        })
+                    }
+                },
+                back(){
+                    console.log("back")
+                    if (this.state.placeholder==="Filière de formation"){
+                        this.update({
+                            placeholder: "Formation",
+                            fili: null,
+                        })
+                        fetchFiliere0().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
+                        })
+                        fetchFiliere1(this.state.fili).then((response) => {
+                            this.update({
+                                allitems: response,
+                                items: response
+                            })
+                            console.log(this.state.items)
+                        })
+                    }
                 }
             }
         }
diff --git a/javascript/components/search.js b/javascript/components/search.js
new file mode 100644
index 0000000..2e9037e
--- /dev/null
+++ b/javascript/components/search.js
@@ -0,0 +1,139 @@
+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(`${searchURL}&rows=0&sort=tri&facet=fili`);
+  let result = await request.json();
+  return result["facet_groups"][0]["facets"];
+}
+async function fetchFiliere1(filiere) {
+  let request = await fetch(`${searchURL}&rows=0&sort=tri&facet=form_lib_voe_acc&refine.fili=${filiere}`);
+  let result = await request.json();
+  return result["facet_groups"][0]["facets"];
+}
+async function fetchFiliere2(sousfiliere) {
+  let request = await fetch(`${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() {
+    return {
+      onBeforeMount(props, state) {
+        // initial state
+        this.state = {
+          placeholder: "Formation",
+          items: null,
+          allitems: null,
+          fili: null,
+          button: "disabled"
+        };
+        fetchFiliere0().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",
+            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);
+          });
+        }
+      },
+      back() {
+        console.log("back");
+      }
+    };
+  },
+  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: expressionTypes.ATTRIBUTE,
+      name: 'this.state.button',
+      evaluate: _scope => _scope.state.button
+    }]
+  }, {
+    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
new file mode 100644
index 0000000..583464a
--- /dev/null
+++ b/javascript/search.js
@@ -0,0 +1,123 @@
+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(`${searchURL}&rows=0&sort=tri&facet=fili`);
+  let result = await request.json();
+  return result["facet_groups"][0]["facets"];
+}
+async function fetchFiliere1(filiere) {
+  let request = await fetch(`${searchURL}&rows=0&sort=tri&facet=form_lib_voe_acc&refine.fili=${filiere}`);
+  let result = await request.json();
+  return result["facet_groups"][0]["facets"];
+}
+async function fetchFiliere2(sousfiliere) {
+  let request = await fetch(`${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() {
+    return {
+      onBeforeMount(props, state) {
+        // initial state
+        this.state = {
+          placeholder: "Formation",
+          items: null,
+          allitems: null,
+          fili: null
+        };
+        fetchFiliere0().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",
+            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 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: 'onkeydown',
+      evaluate: _scope => _scope.searchF
+    }, {
+      type: expressionTypes.ATTRIBUTE,
+      name: 'placeholder',
+      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'
+};
+
+export { search as default };