Index: source/blender/include/BDR_editface.h
===================================================================
--- source/blender/include/BDR_editface.h	(revision 11061)
+++ source/blender/include/BDR_editface.h	(working copy)
@@ -55,6 +55,7 @@
 void set_faceselect(void);
 void set_texturepaint(void);
 void get_same_uv(void);  
+void select_from_uv_selection(void);
 void seam_mark_clear_tface(short mode);
 
 #endif /* BDR_EDITFACE_H */
Index: source/blender/src/editface.c
===================================================================
--- source/blender/src/editface.c	(revision 11061)
+++ source/blender/src/editface.c	(working copy)
@@ -1699,3 +1699,37 @@
 	object_tface_flags_changed(OBACT, 0);
 }
 
+void select_from_uv_selection(void)
+{
+	Mesh *me;
+	MTFace *tface;
+	MFace *mface;
+	int a, desel;
+		
+	me= get_mesh(OBACT);
+	if(me==0 || me->mtface==0) return;
+	
+	tface= me->mtface;
+	mface= me->mface;	
+
+	for(a=0; a<me->totface; a++, mface++, tface++) {
+		if(mface->flag & ME_FACE_SEL) {
+			desel= 1;
+
+			if((tface->flag & TF_SEL1) &&
+			   (tface->flag & TF_SEL2) &&
+			   (tface->flag & TF_SEL3)) {
+				if(mface->v4) {
+					if(tface->flag & TF_SEL4) desel= 0;
+				}
+				else desel= 0;
+			}
+
+			if(desel) mface->flag &= ~ME_FACE_SEL;
+		}
+	}
+
+	BIF_undo_push("Select from UV selection");
+
+	object_tface_flags_changed(OBACT, 0);
+}
Index: source/blender/src/header_view3d.c
===================================================================
--- source/blender/src/header_view3d.c	(revision 11061)
+++ source/blender/src/header_view3d.c	(working copy)
@@ -1380,8 +1380,8 @@
 
 void do_view3d_select_faceselmenu(void *arg, int event)
 {
-	/* events >= 6 are registered bpython scripts */
-	if (event >= 6) BPY_menu_do_python(PYMENU_FACESELECT, event - 6);
+	/* events >= 7 are registered bpython scripts */
+	if (event >= 7) BPY_menu_do_python(PYMENU_FACESELECT, event - 7);
 
 	switch(event) {
 		case 0: /* border select */
@@ -1399,6 +1399,9 @@
 		case 5: /* Select Linked */
 			select_linked_tfaces(2);
 			break;
+		case 6: /* From UV Selection */
+			select_from_uv_selection();
+			break;
 	}
 	allqueue(REDRAWVIEW3D, 0);
 }
@@ -1420,6 +1423,7 @@
 	uiDefIconTextBut(block, BUTM, 1, ICON_BLANK1, "Select/Deselect All|A",				0, yco-=20, menuwidth, 19, NULL, 0.0, 0.0, 1, 2, "");
 	uiDefIconTextBut(block, BUTM, 1, ICON_BLANK1, "Inverse",                0, yco-=20, menuwidth, 19, NULL, 0.0, 0.0, 1, 3, "");
 	uiDefIconTextBut(block, BUTM, 1, ICON_BLANK1, "Same UV",                0, yco-=20, menuwidth, 19, NULL, 0.0, 0.0, 1, 4, "");
+	uiDefIconTextBut(block, BUTM, 1, ICON_BLANK1, "From UV Selection",      0, yco-=20, menuwidth, 19, NULL, 0.0, 0.0, 1, 6, "");
 
 	uiDefBut(block, SEPR, 0, "",				0, yco-=6, menuwidth, 6, NULL, 0.0, 0.0, 0, 0, "");
 	uiDefIconTextBut(block, BUTM, 1, ICON_BLANK1, "Linked Faces|Ctrl L",                0, yco-=20, menuwidth, 19, NULL, 0.0, 0.0, 1, 5, "");
Index: source/blender/src/toolbox.c
===================================================================
--- source/blender/src/toolbox.c	(revision 11061)
+++ source/blender/src/toolbox.c	(working copy)
@@ -913,6 +913,7 @@
 {	0, "Select/Deselect All|A", 2, NULL},
 {	0, "Inverse",				3, NULL},
 {	0, "Same UV",				4, NULL},
+{	0, "From UV Selection",			6, NULL},
 {	0, "SEPR",					0, NULL},
 {	0, "Linked Faces|Ctrl L", 	5, NULL},
 {  -1, "", 						0, do_view3d_select_faceselmenu}};