The Epic jQuery image zoom is easy to set up and it can work on all float setups and layouts. There are 3 modes that you can use, an image preloading built in and cross browser support.

• add zoom-in functionality to any image
• configurable magnification level and magnifier appearance
• 3 modes – use one or two images
• super easy to setup – no CSS , just JS (2kB compressed)
• works in all layouts and float setups
• cross-browser support
• built-in image preloading
• 2 positioning/math functions available for problematic layouts

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