help tooltips on search box and share input box

webui/src/main/css/muwire.css

@@ -592,3 +592,26 @@ textarea.copypaste {
 	z-index: -9999;
 	pointer-events: none;
 }
+
+.tooltip {
+	position: relative;
+	display: inline-block;
+	border-bottom: 1px dotted black;
+}
+
+.tooltip .tooltiptext {
+  visibility: hidden;
+  width: 240px;
+  text-align: center;
+  border-radius: 6px;
+  padding: 5px 0;
+  background : #d8f0ff;
+
+  /* Position the tooltip */
+  position: absolute;
+  z-index: 1;
+}
+
+.tooltip:hover .tooltiptext {
+  visibility: visible;
+}

webui/src/main/webapp/SharedFiles.jsp

@@ -39,6 +39,13 @@ if (viewAs == null)
 				<div class="menuitem shared">
 				  <div class="menu-icon"></div>
 				  <input type="submit" value="<%=Util._t("Share")%>">
+				  <div class="tooltip"><%=Util._t("Help")%>
+				  	<span class="tooltiptext"><%=Util._t("Enter path to file or folder you wish to share.")%>
+				  		<br/>
+				  		<%=Util._t("When sharing files on network drives (like a NAS) please visit")%>
+				  		<a href="/MuWire/AdvancedSharing"><%=Util._t("Advanced Sharing")%></a>
+				  	</span>
+				  </div>
 				</div>
 			</form>
 <% if (viewAs.equals("tree")) { %>

webui/src/main/webapp/searchbox.jsi

@@ -8,6 +8,10 @@
                      <div class="menuitem search">
                        <div class="menu-icon"></div>
                        <input type="submit" value="<%=Util._t("Search")%>" />
+                       <div class="tooltip">
+                       		<%=Util._t("Help")%>
+                       		<span class="tooltiptext"><%=Util._t("Enter keywords or file hash")%></span>
+                       	</div>
                      </div>
                   </form>
               </div>