css - Getting jQuery to make item "selected" -

I'm new to jQuery and I'm looking to use it to select the current menu item (because it's your Looks in hover position.)

My alert is firing, so the function is starting. When this comment is not made, the first description, the background color works yellow. However, I can not find others in influencing the menu "selected" class does not seem to work. In other words, the item that I select in the menu is highlighted in yellow until the page changes, then it goes back to the default color. I have tried several combinations to select, including the Sylhet class is. Only selected.

jQuery

  & lt; Script & gt; $ (Document) .ready (function () {$ ('. Nav ul li'). (Function () {Warning ("go!"); / * $ ('A', this) .css (" Background $ ('A', this) .addClass ('selected');})}}; & lt; / scripts & gt;   
  HTML   
 
 
 ; A href = "index.php" & gt; HOME & lt; / a & gt; & lt; / li & gt; & lt; li & gt; & lt; a href = "about.php" & gt; ABOUT & lt; / li & gt; 
 
 a href = "k-5.php" & gt; K5 projects & lt; strong class = "Carat">    
 
 a href = "wishlist.php" & gt; & lt; / li & gt; & lt; / li & gt; ; LIST LIST & lt; / a & gt; & lt; / li & gt; & lt; li & gt; & lt; a href = "history.php" & Lt; li & gt; & lt; a href = "funlinks.php" & gt; Fun LINKS & lt; / a & gt; Gt; & lt; / li & gt; & lt; li & gt; & lt; a href = "contact.php" & gt; Contact & lt; / A & gt; & Lt; / li & gt; & Lt; / Ul & gt; & Lt; / Div & gt;   
  CSS   
  .nav ul li a: active {background color: # FFB01C; } .nav ul li a: hover {background-color: # FFB01C; } .nav ul li .selected {background-color: # FFB01C;    
 
 
 To ensure that it uses this code  
  & lt; Script & gt; $ (Document) .ready (function () {$ ('. Nav ul li'). Click (function () {// following code event.preventDefault (); Alert ("Go!"); / * $ ( ('A', this). CSS ("background-color", "yellow"); * / $ ('A', this) .removeClass ('selected'); $ ('A', this) .addClass (' Selected'); }); }); & Lt; / Script & gt;   
 This will prevent the page from reloading. Or you should save the list item that the user clicks inside the cache or cookie, and then the style changes on that data.  
 As already mentioned in comments by j08691, your change is being implemented. But as soon as the new document (new page) is loaded in the browser, changes are made. You are also mentioning this problem.  
 I made some changes, here you can check them  
 jQuery was turned into a selector,  
  $ ('. Li ')   
 Since you are enforcing the class in the list, therefore  $ ('. Nav ul li ')  was not working.  
 The second change is described above. The page was loading because you are hyperlinking in your code. He has to take his document to the next one (next document load), to stop it, I added the code now it works.