Use "old" image replacement for pagetools in IE7

This fixes the image display in IE7 with the disadvantage that now in
IE7 with images disabled the text won't be displayed anymore.

lib/tpl/dokuwiki/css/pagetools.css

@@ -133,6 +133,25 @@
     padding: 5px 5px 5px 40px;
 }
 
+/* IE7 fixes, doesn't work without images */
+
+#IE7 #dokuwiki__pagetools ul li a {
+    background-image: url(images/pagetools-sprite.png);
+}
+
+#IE7 #dokuwiki__pagetools:hover ul li a span,
+#IE7 #dokuwiki__pagetools ul li a:focus span,
+#IE7 #dokuwiki__pagetools ul li a:active span {
+    clip: auto;
+    display: inline;
+    position: static;
+}
+
+#IE7 #dokuwiki__pagetools ul li a span {
+    clip: rect(0 0 0 0);
+    position: absolute;
+}
+
 #dokuwiki__pagetools ul li a:hover,
 #dokuwiki__pagetools ul li a:active,
 #dokuwiki__pagetools ul li a:focus {