diff -r d8ba9e1da919 src/signs_gui.cpp
--- a/src/signs_gui.cpp	Wed Jan 06 23:37:57 2010 +0100
+++ b/src/signs_gui.cpp	Wed Jan 06 23:38:09 2010 +0100
@@ -126,6 +126,10 @@
 };
 
 struct SignListWindow : QueryStringBaseWindow, SignList {
+private:
+	int selected_sign;
+
+public:
 	int text_offset; // Offset of the sign text relative to the left edge of the SLW_LIST widget.
 
 	SignListWindow(const WindowDesc *desc, WindowNumber window_number) : QueryStringBaseWindow(MAX_LENGTH_SIGN_NAME_BYTES)
@@ -139,6 +143,7 @@
 
 		/* Initialize the filtering variables */
 		this->SetFilterString("");
+		this->selected_sign = -1;
 
 		/* Create initial list. */
 		this->signs.ForceRebuild();
@@ -189,9 +194,19 @@
 		/* Repaint the clear button since its disabled state may have changed */
 		this->SetWidgetDirty(SLW_FILTER_CLEAR_BTN);
 
+		this->selected_sign = Clamp(this->selected_sign, -1, this->signs.Length() - 1); // Can happen when a new filter is used.
+
 		/* Rebuild the list of signs */
 		this->InvalidateData();
 	}
+
+	/** Make sure that the currently selected sign is within the visible part of the sign list */
+	void ScrollToSelected()
+	{
+		if (this->selected_sign == -1 || (uint)this->selected_sign >= this->signs.Length() ) return;
+
+		this->vscroll.ScrollTowards(this->selected_sign);
+ 	}
 
 	virtual void OnPaint()
 	{
@@ -223,7 +238,7 @@
 					if (si->owner != OWNER_NONE) DrawCompanyIcon(si->owner, icon_left, y + sprite_offset_y);
 
 					SetDParam(0, si->index);
-					DrawString(text_left, text_right, y, STR_SIGN_NAME, TC_YELLOW);
+					DrawString(text_left, text_right, y, STR_SIGN_NAME, this->selected_sign == i ? TC_BLUE : TC_YELLOW);
 					y += this->resize.step_height;
 				}
 				break;
@@ -253,6 +268,7 @@
 			case SLW_FILTER_CLEAR_BTN:
 				this->ClearFilterTextWidget();
 				this->SetFilterString(0);
+				this->selected_sign = -1;
 				break;
 
 			case SLW_FILTER_MATCH_CASE_BTN:
@@ -284,17 +300,23 @@
 				this->SetFilterString(this->text.buf);
 				break;
 
-			case HEBR_CONFIRM: // Enter pressed -> goto first sign in list
-				if (this->signs.Length() >= 1) {
-					const Sign *si = this->signs[0];
-					ScrollMainWindowToTile(TileVirtXY(si->x, si->y));
+			case HEBR_CONFIRM: { // Enter pressed -> goto selected sign in list (or first if no selected sign)
+				uint n_signs = this->signs.Length();
+				if (n_signs >= 1) {
+					uint sign_id = this->selected_sign == -1 || (uint)this->selected_sign >= n_signs ? 0 : this->selected_sign;
+					if (n_signs > sign_id) {
+						const Sign *si = this->signs[sign_id];
+						ScrollMainWindowToTile(TileVirtXY(si->x, si->y));
+					}
 				}
 				return state;
+			}
 
 			case HEBR_CANCEL: // ESC pressed, clear filter
 				this->ClearFilterTextWidget(); // Empty the text in the EditBox widget
 				this->SetFilterString(0);      // Use empty text as filter text (= view all signs)
 				this->UnfocusFocusedWidget();  // Unfocus the text box
+				this->selected_sign = -1;      // Deselect sign in sign list
 				return state;
 
 			case HEBR_NOT_FOCUSED: // The filter text box is not globaly focused
@@ -310,6 +332,59 @@
 		}
 
 		if (state == ES_HANDLED) OnOSKInput(SLW_FILTER_TEXT);
+
+		/* Selection of signs using arrow up/down , page up/down and ctrl + home/end keys. 
+		 * This only happens if the edit box is globaly focused.
+		 */
+		if (state != ES_HANDLED && this->IsWidgetGloballyFocused(SLW_FILTER_TEXT)) {
+			switch (keycode) {
+				case WKC_UP:
+					/* scroll up by one */
+					this->selected_sign--;
+					if (this->selected_sign < 0) this->selected_sign = 0;
+					state = ES_HANDLED;
+					break;
+
+				case WKC_DOWN:
+					/* scroll down by one */
+					this->selected_sign++;
+					if (this->selected_sign < 0) this->selected_sign = 0;
+					state = ES_HANDLED;
+					break;
+
+				case WKC_PAGEUP:
+					/* scroll up a page */
+					this->selected_sign = max(0, this->selected_sign - (int)this->vscroll.GetCapacity());
+					state = ES_HANDLED;
+					break;
+
+				case WKC_PAGEDOWN:
+					/* scroll down a page */
+					this->selected_sign = min(this->selected_sign + this->vscroll.GetCapacity(), (int)this->signs.Length() - 1);
+					state = ES_HANDLED;
+					break;
+
+				case WKC_CTRL | WKC_HOME: // Home key without ctrl is processed by the edit box
+					/* jump to beginning */
+					this->selected_sign = 0;
+					state = ES_HANDLED;
+					break;
+
+				case WKC_CTRL | WKC_END: // End key without ctrl is processed by the edit box
+					/* jump to end */
+					this->selected_sign = (int)this->signs.Length() - 1;
+					state = ES_HANDLED;
+					break;
+			}
+
+			if (state == ES_HANDLED) {
+				/* Make sure the selected sign is visible */
+				this->ScrollToSelected();
+
+				/* Repaint the window */
+				this->SetDirty();
+			}
+		}
 
 		return state;
 	}