diff --git a/src/js/validations.js b/src/js/validations.js
new file mode 100644
index 0000000..cecd3b7
--- /dev/null
+++ b/src/js/validations.js
@@ -0,0 +1,55 @@
+function getFormData() {
+  var data = {
+    "incidents": [],
+    "records": []
+  };
+
+  ["incident", "record"].forEach(key => {
+    document.querySelectorAll("input[type=\"checkbox\"][data-"+key+"]:checked").forEach(el => {
+      data[key+"s"].push(el.getAttribute("data-"+key));
+    });
+  });
+
+  return data;
+}
+
+window.addEventListener("load", function() {
+  document.querySelectorAll(".mdl-checkbox[data-check-all=\"true\"] input[type=\"checkbox\"]").forEach(el => {
+    el.addEventListener("change", e => {
+      el.parentElement.parentElement.parentElement.parentElement.parentElement.querySelectorAll(".mdl-checkbox:not([data-check-all=\"true\"])").forEach(input => {
+        var checkbox = input.MaterialCheckbox;
+
+        if (el.checked) checkbox.check();
+        else checkbox.uncheck();
+      });
+    });
+  });
+
+  document.querySelector("#submit").addEventListener("click", e => {
+    var data = getFormData();
+
+    if (data.incidents.length == 0 && data.records.length == 0) {
+      document.querySelector(".mdl-js-snackbar").MaterialSnackbar.showSnackbar({
+        message: "Debes seleccionar al menos una incidencia o registro para poder validar.",
+        timeout: 5000
+      });
+
+      return;
+    }
+
+    var form = document.createElement("form");
+    form.setAttribute("action", "interstitialvalidations.php");
+    form.setAttribute("method", "POST");
+    form.style.display = "none";
+
+    ["incidents", "records"].forEach(key => {
+      var input = document.createElement("input");
+      input.setAttribute("name", key);
+      input.setAttribute("value", data[key]);
+      form.appendChild(input);
+    });
+
+    document.body.appendChild(form);
+    form.submit();
+  });
+});