diff --git a/src/main/kotlin/main/Main.kt b/src/main/kotlin/main/Main.kt
index db34a46..2e643dd 100644
--- a/src/main/kotlin/main/Main.kt
+++ b/src/main/kotlin/main/Main.kt
@@ -134,57 +134,23 @@ fun app() {
                 formulairePage(onAnnulerClick = { currentPage.value = "glossaire" })
             }
             "choixLangage" -> {
+                val jsExtensions = setOf("js", "html")
+                val javaExtensions = setOf("java")
+                val pythonExtensions = setOf("py")
                 choixLangagePage(
                     onRetourClick = { currentPage.value = "accueil" },
                     onPythonClick = {
-                        val fileDialog = FileDialog(Frame(), "Select a file", FileDialog.LOAD)
-                        fileDialog.file = "Untitled.py" // Initial file name
-                        fileDialog.isMultipleMode = false // To enable selecting only one file
-                        fileDialog.setFile("*.py")
-                        fileDialog.isVisible = true
-
-                        val selectedFile = fileDialog.file
-                        val selectedDirectory = fileDialog.directory
-
-                        if (selectedFile != null) {
-                            val filePath = selectedDirectory + selectedFile
-                            println("Opening: $filePath")
-                        } else {
-                            println("Open command cancelled by user.")
-                        }
-                    },
+                        selectFile(pythonExtensions) { filePath ->
+                            println("Python file selected: $filePath") // Change by parser functions
+                        } },
                     onJavaClick = {
-                        val fileDialog = FileDialog(Frame(), "Select a file", FileDialog.LOAD)
-                        fileDialog.file = "Untitled.java" // Initial file name
-                        fileDialog.isMultipleMode = false // To enable selecting only one file
-                        fileDialog.setFile("*.java")
-                        fileDialog.isVisible = true
-
-                        val selectedFile = fileDialog.file
-                        val selectedDirectory = fileDialog.directory
-
-                        if (selectedFile != null) {
-                            val filePath = selectedDirectory + selectedFile
-                            println("Opening: $filePath")
-                        } else {
-                            println("Open command cancelled by user.")
+                        selectFile(javaExtensions) { filePath ->
+                            println("Java file selected: $filePath") // Change by parser functions
                         }
                     },
                     onJavaScriptClick = {
-                        val fileDialog = FileDialog(Frame(), "Select a file", FileDialog.LOAD)
-                        fileDialog.file = "Untitled.js" // Initial file name
-                        fileDialog.isMultipleMode = false // To enable selecting only one file
-                        fileDialog.setFile("*.js")
-                        fileDialog.isVisible = true
-
-                        val selectedFile = fileDialog.file
-                        val selectedDirectory = fileDialog.directory
-
-                        if (selectedFile != null) {
-                            val filePath = selectedDirectory + selectedFile
-                            println("Opening: $filePath")
-                        } else {
-                            println("Open command cancelled by user.")
+                        selectFile(jsExtensions) { filePath ->
+                            println("JavaScript file selected: $filePath") // Change by parser functions
                         }
                     }
                 )
@@ -194,6 +160,30 @@ fun app() {
     }
 }
 
+fun selectFile(allowedExtensions: Set<String>, onFileSelected: (String) -> Unit) {
+    val fileDialog = FileDialog(Frame(), "Select a file", FileDialog.LOAD)
+    fileDialog.isMultipleMode = false // To enable selecting only one file
+    fileDialog.isVisible = true
+
+    val selectedFile = fileDialog.file
+    val selectedDirectory = fileDialog.directory
+
+    if (selectedFile != null) {
+        val filePath = "$selectedDirectory$selectedFile"
+
+        // Vérifier si l'extension est autorisée
+        val fileExtension = File(filePath).extension.toLowerCase()
+        if (allowedExtensions.contains(fileExtension)) {
+            println("Opening: $filePath")
+            onFileSelected(filePath)
+        } else {
+            println("Invalid file extension.")
+        }
+    } else {
+        println("Open command cancelled by user.")
+    }
+}
+
 fun exportToCSV(csvFilePath: String) {
     val glossary = chargerDonneesDepuisFichier()
     val csvContent = buildString {