diff --git a/mozilla/editor/ui/dialogs/content/EdDialogCommon.js b/mozilla/editor/ui/dialogs/content/EdDialogCommon.js
index 57bf3446052..7c1ff560cef 100644
--- a/mozilla/editor/ui/dialogs/content/EdDialogCommon.js
+++ b/mozilla/editor/ui/dialogs/content/EdDialogCommon.js
@@ -367,8 +367,9 @@ function forceInteger(elementID)
     return;
 
   var stringIn = editField.value;
-  var pat = /\D+/g;
+  var pat = new RegExp("/\D+/");
   if (pat.test(stringIn)) {
+dump("TEST SUCCEEDED\n")
     editField.value = stringIn.replace(pat,"");
 
     // we hope to remove the following line for blur() once xp widgets land
@@ -376,6 +377,9 @@ function forceInteger(elementID)
     //editField.blur();
     sysBeep.Beep();
   }
+  else {
+dump("TEST didn't SUCCEEDED\n")
+  }
 }
 
 
diff --git a/mozilla/editor/ui/dialogs/content/EdHLineProps.js b/mozilla/editor/ui/dialogs/content/EdHLineProps.js
index 96a34fb9ccf..31e7309e3e6 100644
--- a/mozilla/editor/ui/dialogs/content/EdHLineProps.js
+++ b/mozilla/editor/ui/dialogs/content/EdHLineProps.js
@@ -75,9 +75,29 @@ function Startup()
 //   by AdvancedEdit(), which is shared by all property dialogs
 function InitDialog()
 {
+//******** Debuggin weird RegExp problems
+  var stringIn = "123abc456";
+  dump("Test string = "+stringIn+"\n");
+  var pat = new RegExp("/\D+/g");
+  if (pat.test(stringIn)) {
+    var tempStr = stringIn.replace(pat,"");
+    dump("Replaced pattern = "+tempStr+"\n");
+  } else {
+    dump("Failed test for nonnumeral characters\n");
+  }
+//***************** end of test
+
+
   // Just to be confusing, "size" is used instead of height
+  var height = globalElement.getAttribute("size");
+  if(!height) {
+    dump("NO SIZE FOUND FOR HLINE");
+    height = 2; //Default value
+  }
+dump("HLine size = "+height+"\n");
+
   // We will use "height" here and in UI
-  dialog.heightInput.value = globalElement.getAttribute("size");
+  dialog.heightInput.value = height;
 
   // Get the width attribute of the element, stripping out "%"
   // This sets contents of combobox (adds pixel and percent option elements)