jQuery lockfixed

Allow elements to stick within viewport when scrolling. Toggles position: fixed only after scrolling the viewport. Degrades nicely on mobile and tablet browsers.Supports:Doesn’t overflow footer because footer pushes elements up.Doesn’t need any hardcoded CSS tricks.All major browsers through position:fixed and iOS/Android/IE7 degrade through margin offset.Fixes tablet and mobile zoom issue with fixedOffset position from top and bottom within scrolled viewport.Super light weight: 2.6kb uncompressed.Div layout structure can be floats or position: absolute support.