TopZIndex plugin for jQuery

Version 1.2

This jQuery plugin calculates the highest CSS z-index value in the current document or specified set of elements, and also provides the ability to push one or more elements to the top of the z-index order.

The plugin is particularly useful for dynamic HTML popup windows/panels (or other dynamic elements) the order of which need to be re-shuffled on the page dynamically.

Version 1.2 Release Notes

• Changed default selector back to "*" from "body *". Internally, the element selection was re-worked to use the browser's native document.getElementsByTagName("*") if all elements are to be selected, as this will perform better than creating a jQuery instance, regardless of the default selector used.
• Worked around a bug in WebKit browsers that returns scientific notation (instead of an integer value) for large z-index values. For example, Safari for Windows returns 1e+006 instead of 1000000 (1 million).
• Slight performance increase through setting the z-index style on elements using the native DOM style property of each element, rather than generating a jQuery matched set for each element and using .css("z-index", ___).

Version 1.1 Release Notes

• Default selector changed from "*" to "body *", which increases performance overall.
• Simplified z-index calculation internally, also increasing performance.