When changing home course id, grad tie-ins will update as well (on full edit page anyways)

document_root/javascript/request/fullEdit.js

@@ -13,6 +13,12 @@ function onEditWrapperLoad()
         removeButtons[i].onclick = handleRemoveRecord;
     }
 
+    var subjectNode = document.getElementById('subject');
+    subjectNode.previousValue = subjectNode.value;
+    subjectNode.onchange = handleChangeSubject;
+    document.getElementById('courseNumber').onchange = handleChangeCourseNumber;
+    document.getElementById('courseLetter').onchange = handleChangeCourseLetter;
+
 }
 
 function handleAddRecord()
@@ -75,3 +81,60 @@ function handleRemoveRecord()
     return false;
 }
 
+
+
+
+
+function handleChangeSubject()
+{
+    var previousSubject = this.previousValue;
+    var currentSubject = this.value;
+
+    this.previousValue = currentSubject;
+
+    var gradTieInRows = getElementsByClass('grad_tie_in_row');
+    var noChange = false;
+    for (var i = 0; i != gradTieInRows.length; i++) {
+        var gradTieInRow = gradTieInRows[i];
+        var gradNode = gradTieInRows[i].childNodes[3].childNodes[1];
+
+        if (gradNode.value == currentSubject) {
+            noChange = true;
+        }
+    }
+
+    if (noChange) {
+        return;
+    }
+
+    for (var i = 0; i != gradTieInRows.length; i++) {
+        var gradNode = gradTieInRows[i].childNodes[3].childNodes[1];
+
+        if (gradNode.value == previousSubject) {
+            gradNode.value = currentSubject;
+        }
+    }
+
+}
+
+function handleChangeCourseNumber()
+{
+    var gradNumber = 800 + (this.value % 100);
+    var gradTieInRows = getElementsByClass('grad_tie_in_row');
+    for (var i = 0; i != gradTieInRows.length; i++) {
+
+        gradTieInRows[i].childNodes[7].childNodes[1].value = gradNumber;
+    }
+}
+
+
+function handleChangeCourseLetter()
+{
+    var gradLetter = this.value;
+    var gradTieInRows = getElementsByClass('grad_tie_in_row');
+    for (var i = 0; i != gradTieInRows.length; i++) {
+
+        gradTieInRows[i].childNodes[11].childNodes[1].value = gradLetter;
+    }
+}
+