1 files changed, 10 insertions, 6 deletions
diff --git a/qc_app/static/js/upload_progress.js b/qc_app/static/js/upload_progress.js
index d615be4..fdcbe68 100644
--- a/qc_app/static/js/upload_progress.js
+++ b/qc_app/static/js/upload_progress.js
@@ -69,16 +69,20 @@ function upload_data(event) {
     event.preventDefault();
 
     var pindicator = document.getElementById("progress-indicator");
-    pindicator.setAttribute("class", "modal");
 
-    var form = document.getElementsByTagName("form")[0]
+    var form = document.getElementsByTagName("form")[0];
+    var the_file = form.querySelector("input[type='file']").files[0];
+    if(the_file === undefined) {
+	form.querySelector("#file_upload").parentElement.setAttribute(
+	    "class", "invalid-input");
+	return false;
+    }
+    pindicator.setAttribute("class", "modal");
     var formdata = setup_formdata(form);
 
-    document.getElementById("progress-filename").innerHTML = (
-	form.querySelector("input[type='file']").files[0].name);
+    document.getElementById("progress-filename").innerHTML = the_file.name;
     var request = setup_request(
-	form.querySelector("input[type='file']").files[0],
-	document.getElementById("progress-indicator"));
+	the_file, document.getElementById("progress-indicator"));
     request.open(form.getAttribute("method"), form.getAttribute("action"));
     request.send(formdata);
     return false;