Here's what I'm trying to do. If the user scrolls down it will indicate on the navigation which part of the item is currently active. - So, example, when a user first load the page, obviously, the first item ("item 1") will be shown and "item 1" on the left-navigation will be highlighted to indicate that it's the active item. - If the user scrolls down, it will move to the next item (which is "item 2"). So it will also highlight "item 2" on the left-navigation and will open the Dropdown so the sub-items can be seen. - As the user keep scrolling, it will continue to change the current active items on the left-navigation. Basically, whatever item is currently on screen, it will be highlighted on the navigation. - You can use the class "current" to indicate the active version of items in navigation and content. Demo here: http://jsfiddle.net/8Crum Please review first my requirements first and my jsfiddle. Make sure you fully understand it and can pull this task off. Budget: $15. Deadline: ASAP within 24 hours. Payment: Paypal Thank You.